2 Pin Plugs & Adapters for Toothbrushes Explained
So you have just bought that new electric toothbrush, but wait, how do you charge it? It has a 2 pin plug on it, rather than 3 pin plug you are used to here in the UK.
This 2 pin plug, is a shaver plug. It is designed to fit into the shaver socket found in many bathrooms within the UK.
Safety is the reason it comes with a 2 pin shaver plug, rather than a 3 pin, which I will explain in a bit more detail below.
However, for those of you who donât have a shaver socket in your home/bathroom and want the solution, you will be pleased to know that there is one. They are 2 pin plug adapters.
2 pin to 3 pin plug adapter is the most common name for this important tool, but other names given to these items include:
- 2 pin adapter
- 2 pin plug adapter
- Toothbrush adapter
- Electric toothbrush adapter
- Shaver plug converter
- Electric toothbrush plug adapter
Available from many large retailers these allow you to charge your toothbrush from a standard 3 pin socket.
Why do electric toothbrushes comes with 2 pin chargers? 2 pin shaver sockets and chargers explained.
There is good reason behind the 2 pin adapter, I will now explain this and I promise I wonât get too technical.
The reason is all to do with SAFETY.
Please note: This information relates to the UK and Europe primarily, America and many other countries differ.
In the UK the mains electricity that you connect your appliances and gadgets into works on 240 volts. This is a high voltage and can cause serious injury and death if you were to touch a live electrical line.
Under most circumstances if you include water and electricity the effects of injury are much greater as water reduces the resistance the human body has to the electrical current.
Therefore to protect people, a âsaferâ less powerful form of electrical socket was introduced into bathrooms, where water is generally present more frequently.
This safer solution was and is the 2 pin socket, similar to the 2 pin SCHUKO connector found in many European countries.
This meant that more traditional power hungry products could now not easily be used within these rooms, only lower power items, therefore reducing the chances of injury.
An extreme example, but imagine if you had a toaster in your bathroom. Whilst this was switched on, it fell into the bath, which was full of water and you were in it too. The resulting consequence is not one I like to think about it. You will be âtoastedâ yourself.
Toasters donât come with a 2 pin connector, so you canât use it in your bathroom and as a result you are now a bit safer from electrocution and possible death!
Nobody wants to be toasted whilst in the bath, so to avoid people doing silly things like this, the âsaferâ less powerful sockets were introduced.
With it came a new connector. Hence the 2 pin plug you find on the charging stands for electric toothbrushes and to power other things like electric shavers, which are most commonly used in the bathroom.
These sockets are often known as âshaver socketsâ because this is what is commonly connected into them. Many faceplates for sockets in bathrooms will say âshavers onlyâ.
UK building regulations mean you cannot fit a regular 3 pin mains power socket in a bathroom, even the âshaver socketâ has to be a safe distance away from the bath or shower. This is often why many sockets are part of a light fitting above a mirror and hidden behind a little door, making it harder to access. All to protect you and I from injuring ourselves.
Other countries around the world may have normal sockets in their bathrooms. Why? For some it is because of the lower voltage used, so the effects of electric shock and serious injury are reduced. In other cases it is less established safety measures and in others there is a trust that you as an individual wonât do anything silly enough to put your life at risk.
You could today still if you wanted put a toaster in your bathroom but you would have to plug that toaster into a 3 pin socket in another room, probably via an extension cord. There is only so far legislation can go at this time to stop you from doing things like this, but going to such efforts puts you off doing it at all.
For those who want a little more technical reasoning, inside the socket is what is known as an isolation transformer. This works by using the mains supply to power a small transformer that is electrically isolated from the rest of the supply and any earth in the bathroom. Theoretically you can touch the live output and the earthed metal work in the bathroom and be OK.
However, I understand there are probably still a few questions you want answered so here are a few common questions and answers.
I donât have a 2 pin shaver socket in my bathroom, what do I do?
You need to purchase an 2 pin adapter, that will allow you to connect a 2 pin shaver plug such as that on your electric toothbrush to a 3 pin socket.
They generally look like:
They are often really inexpensive at just a few ÂŁ.
A great example is the 2 to 3 pin adapter plug complete with fuse âView on Amazon.
Once you have this, you can then charge your toothbrush from a socket anywhere else in your home.
| Preview | Product | Rating | Price | |
|---|---|---|---|---|
 | UK 2 to 3 Pin Adaptor Plug For Shavers And Toothbrushes Simply Plug it into the UK Socket And Insert... | 7,500 Reviews | ÂŁ4.22ÂŁ3.99 | View on Amazon |
Can I connect a 2 pin connector to my 3 pin mains socket?
Yes you can. You require a good quality, fuse adapter such as that from TC Travel (view on Amazon)and you are then set to power your 2 pin powered appliance from a 3 pin mains adapter.
Whatâs the best 2 to 3 pin mains adapter?
There isnât one âbestâ 2 pin to 3 pin mains adapter. There are many options but you generally get what you pay for.
It is worth paying a bit more to ensure you get a good quality adapter as you donât want to risk any electrical shocks or damaging your electronic items.
A very cheap option is theGadget Hut shaver adapter (view on Amazon).
| Preview | Product | Rating | Price | |
|---|---|---|---|---|
 | Gadgets Hut UK - 2 To 3 Pin 1A Fuse Adapter Plug for Shaver and Toothbrush | 2,137 Reviews | ÂŁ3.99 | View on Amazon |
A slightly more expensive option, but possibly better quality option is the previously mentioned TEC Travel option.
Extension cords for shaver socket/electric toothbrush?
If you do have a 2 pin shaver socket in your bathroom, then you should be able to begin charging your electric brush from the moment you get it. You wonât need any plug adapters.
However, whilst most electric toothbrush chargers have a long enough cable to reach the shaver socket, the design and positioning of some sockets and bathrooms means that there is not enough cable to reach between the socket, and the place you would like to locate your electric toothbrush.
Most electric toothbrush chargers have approximately 1.2 meters (4 feet) of cable.
Sadly, in some instances another 30-60cm (1-2 feet) of cable would be preferred.
A commonly asked question is are there any extension cables or cords for shaver sockets or electric toothbrushes.
Unfortunately, to my knowledge no such product exists. I have searched many places for such.
I can see a need for it, but I do believe the reason that an extension cord for an electric toothbrush or shaver socket does not exists is related to safety and demand.
For the majority, power cables on electric toothbrush chargers are sufficient because the shaver socket is appropriately placed, therefore there is limited demand.
For those who have the need or demand the extra cable length then adds a risk that the cable is within reach or will make contact with water, thus posing a safety concern.
Is a 2 pin shaver plug the same as a 2 pin European mains adapter?
No, not quite. A 2 pin plug found on an electric toothbrush or shaver has pins that are closer together than a traditional 2 pin EU mains adapter.
This means that appliances that would normally connect to a shaver socket cannot and should not be connected to mains power in Europe.
For example, if you charge your electric toothbrush in a shaver socket at home in the UK, that same plug cannot and should not be connected to the 2 pin socket found on the wall of your hotel room in France or Spain. However, most bathrooms will have a shaver socket which you can connect to.
If they do not you will need an adapter such as this:
| Preview | Product | Rating | Price | |
|---|---|---|---|---|
 | Go Travel EU Electric Shaver Razor Adaptor Toothbrush Plug Socket Converter 2 To 3 Pin (Adapter ref... | 155 Reviews | ÂŁ9.99 | View on Amazon |
If travelling from France or Spain or similar countries, your appliances you would normally connect to the wall should not be connected to sockets found in bathrooms here in the UK. You need an adapter such as this:
| Preview | Product | Rating | Price | |
|---|---|---|---|---|
 | Pack of 2 plug adapter I European to UK adaptor, EU schuko 2 pin to 3 pin travel adaptors, Europe... | 392 Reviews | ÂŁ9.99 | View on Amazon |
Can I take my electric toothbrush travelling with me? What adapter do I need?
Yes you can take your toothbrush with you when travelling.
Much depends on where you are travelling too.
We have a full guide to using an electric toothbrush abroad which you can read, but a summary is explained below.
If you are travelling to another country that has the same electrical voltage then you simply need a plug adapter.
A great solution I believe is the Skross Pro World Travel Charger (view on Amazon). It works in over 220 countries and works with devices up to 2500w. You still need to have a 2 pin to 3 pin adapter fitted to it, but it works in so many countries.
| Preview | Product | Rating | Price | |
|---|---|---|---|---|
 | Skross Pro World Travel Adapter, 3-pole Travel Adaptor with Slide System, Designed in Switzerland... | 128 Reviews | View on Amazon |
Most larger hotels will have a âshaver socketâ in the bathroom that will be suitable for your electric toothbrush. However in some counties and regions this may not apply.
When travelling to a country that uses a different voltage to that in your home country, you need to check a few things.
For example, letâs say you live in the UK and are going to the USA and assuming you are going long enough that you need to charge your brush when there.
The UK uses 240V electrics whereas the USA uses 110V.
Most electric toothbrushes bought in the UK and Europe have charging stands that work on 220-240V. So to use them in the USA, you need a power converter to allow the charging stand to accept the 110V. You can buy these from various retailers online or in the high street.
Do your research on the voltage in a particular country to ensure you are getting the right converter.
In the instances where the voltage in the country you are travelling to is lower, you need a âstep upâ converter and when the voltage is higher you need a âstep downâ converter.
Some electric toothbrushes have charging stands that will support 110-240V meaning you will not need the voltage converter. The Philips Sonicare DiamondClean is one example.
What you may need though is a plug adapter. This is to convert the 2 pin adapter found on most charging stands in the UK and Europe to work with the power supply in the other country.
When using a voltage converter, you may need a different adapter to the one you think.
Using the travel form the UK to the USA again, the âStep Upâ voltage converter has the 2 pin US connector on it, but actually offers up a 3 pin UK power adapter. However your toothbrush has the 2 pin adapter, so although you are travelling to the USA, you will need the 2 pin to 3 pin adapter.
Why are 2 to 3 pin adapters not included with my electric toothbrush or shaver?
I have had many a reader ask why isnât a electric toothbrush plug adapter or shaver plug converter included in the box. Why is it presumed that everyone has a shaver socket in their bathroom?!
This is a good question and one I have often thought about myself. Including an adapter in the box would be a nice addition.
As I see it there are 3 main reasons why they are not.
The first is the need for it. Many, (but not all bathrooms) have a 2 pin shaver socket, so the need for a shaver plug converter is surplus to requirements for many.
The second is cost. If every electric toothbrush came with a 2 pin shaver plug to 3 pin plug adapter it would put the cost up by a few ÂŁ and many companies want to keep costs down, so it is often best to exclude it.
The third reason is electric waste and the environment. Linked to my second reason, if you donât need the adapter, it would just end up getting thrown away or left in a draw somewhere not being used, so it is a waste of resources to make it in the first place and serves no value to many people.
Can I get an adapter to charge multiple devices from a shaver socket? I want to charge a toothbrush and shaver from one socket.
Yes and no.
Generally speaking they do not exist from reputable sellers. I have seen some, but we have questions about their safety and reliability.
The sockets are not designed to take âextraâ strain.
You are best powering or charging each device independently as and when you need it. For example, connect and charge your toothbrush, when that is done, connect and charge your shaver or other appliance.
Your comments
I really hope all of the above is helpful to you and has answered any questions you may have had about 2 pin plugs and adapters required for electric toothbrushes and similar products like shavers.
If you have any questions, or have any of your own, tips, advice and feedback that can help improve this article or indeed help others, your input is most appreciated. Please comment below.
FAQs
Why do electric toothbrushes have 2 pin plugs? âș
You've just bought an electric toothbrush but it has a 2 pin, rather than a 3 pin that's commonly seen in UK bathrooms. The 2 pins are shaver plugs and they're designed to fit into a shaver socket for safety reasons.
What adapter do I need for an electric toothbrush? âșMost electric toothbrushes come with 2-pin shaver plugs (not to be confused with 2-pin continental plugs), and these can be easily plugged into a standard 3-pin plug with a 3-pin adapter for electric toothbrush, also known as a shaver adapter.
How does a two pin plug work? âș2-pin plugs consist of two flat or round pins with one called âhotâ or âliveâ and the other called the âneutralâ. When connected to an electric circuit, the current flows from the live pins through the copper conductor and into the device.
What adapter do I need for my Oral-B toothbrush? âșYou need to use an Oral-B 110v charger which can be bought locally. Be aware that the plug style may be different in other countries. In case you visit a country that has a different plug style, like USA/Canada, we recommend purchasing a plug adapter.
Why does my Oral B toothbrush have a European plug? âșAnswer: For safety reasons our toothbrushes come with UK 2 pin shaver plugs to reduce the potential risk of electric shock.
Why is it safe to use a two pin plug? âșThis means that, even if a live wire touches the casing, it will not become âliveâ, hence it will be safe to use even without an earth wire.
Should you leave your electric toothbrush on the charger all the time? âșIt seems smart to leave your electric toothbrush in the charging dock so it never runs out of battery. But we don't recommend charging the toothbrush all the time. Always fully charge the toothbrush and don't put it back in the charger when the battery is empty. That way, the battery will last longer.
Can I use any adapter with Oral-B? âșVERY IMPORTANT: The voltage rating of the charger and the voltage in the outlet have to be the same in order to use the product without damaging it. If the charger voltage and the country outlet voltage match, but the plug is a different shape (doesn't fit the socket), they can use a plug adapter.
Do all electric toothbrushes use the same charger? âșThe type number of your toothbrush and the type number of your charger are independent and do not necessarily match. Confusingly, they used to match to some extent but in recent years they have diverged and are now independent of each other.
What are the disadvantages of a 2 pin plug? âșIn addition, 2-pole plugs are not constructed to continuously withstand high currents. For example, if more than 2.5 amperes (in other words, more than 500 watts), are transferred through a 2-pole plug, it is possible that damage caused by smouldering or burning can occur under certain conditions.
Are two pin adapters safe? âș
If an electrical surge does occur while using one of these adapters, it can result in electrocution or an electrical fire. If you only have two prong outlets in your home, the safest option is to replace them. They are unsafe and unable to handle the demand of today's electronic devices.
What are the different types of two prong plugs? âșThere are two types of domestic wall outlets in use in the US, Canada, Japan and Central America: the ungrounded type A (NEMA 1-15) and the grounded type B (NEMA 5-15).
How do I connect my Oral-B electric toothbrush? âș- Open up your Oral-B app and navigate to the âMORE' screen.
- Select the âYOUR BRUSHâ option from the menu.
- Tap âCONNECT NEW BRUSHâ at the bottom of the screen.
- Select âYESâ when prompted to connect your toothbrush.
- Tap âSTARTâ on the welcome screen.
Bouge Charger Replacement Charger Type 3757 Compatible With Braun Oral B Electric Toothbrush Pro Series, Genius Series, Smart Series and Most Model Oral-b Charging Base Waterproof IP67 UK Plug.
What is the brown stuff at the bottom of my electric toothbrush? âșThe accumulated water and protein-laden water drips down and there are enough nutrients in that water to allow bacteria and mold to grow [sic]. Which all sounds about right: Gunk and mold thrive wherever water sits stagnantâsay, the base of the toothbrush, or where the head is attached.
How many years does an Oral-B electric toothbrush last? âșThe average lifespan of an Oral-B electric toothbrush is approximately 3-5 years, so your brush may not be up to our standards.
Can I charge my Oral-B toothbrush in a shaver socket? âșCharging a toothbrush takes longer and the transformer may get warm leading to the discolouration and cracking of the faceplate as mentioned by others. In short, yes it will work but the socket may eventually fail.
When did they stop using 2 prong plugs? âșIn North America, the ungrounded 2 prong plug was being replaced by grounded 3 prong outlets as early as the 1960s. Two prong outlets had been the standard since the early 1900s, but they are simply not up to code for our modern electrical demands.
Who uses 2 pin plug? âșPower outlet type A has two flat parallel prongs, it is predominantly used in North and central America and Japan. The Japanese plug has two identical flat prongs, whereas the US plug has one prong that is slightly larger, it is not a problem to use Japanese plugs in the US, however the opposite doesn't always work.
Can I use 2 pin plug in USA? âșThe official voltage for the USA and Canada is 120 volts, with most electrical goods operating at around 110 volts. All of North America operates on a 2 pronged North American outlet, with a third optional round pin. If you are traveling to North America, you will need a North American power point adapter.
Should I put my electric toothbrush in my hold or carry-on? âș
Devices containing lithium metal or lithium ion batteries should be carried in carry-on baggage. Most other consumer devices containing batteries are allowed in carry-on and checked baggage.
Can I overcharge electric toothbrush? âșCharge the toothbrush until it indicates the battery is full, or for 24 hours, whichever comes first. Don't exceed the 24 hours because overcharging Ni-MH batteries can shorten their lifespan. Don't store the toothbrush on its charger between uses, as repeated top-ups can shorten the battery's life.
How many times a day should you use an electric toothbrush? âșAs a rule of thumb, Dr. Lane recommends her patients use an electric toothbrush twice a day. She said, "when brushing with a manual or an electric toothbrush, you should spend two minutes brushing in the morning and the evening".
What is a Type B adapter? âșFor USA there are two associated plug types, types A and B. Plug type A is the plug which has two flat parallel pins and plug type B is the plug which has two flat parallel pins and a grounding pin. USA operates on a 120V supply voltage and 60Hz.
Why can't Oral-B find my smart charger? âșHaving trouble with your Oral-B Sense smart charger? First, try unplugging it from the power adapter, then plug it back in to see if this resolves the problem. If that does not resolve your issue, reset your device: Place your finger on the WiFi icon on the back of your device.
Do all Oral-B toothbrushes use same charger? âșAll the Oral-B electric toothbrushes come with region-specific battery chargers and thus, you would require a voltage converter or a plug adapter to use it overseas. Let's understand if your electric toothbrush can be used abroad in some simple steps.
What is the difference between power toothbrush and electric toothbrush? âșBattery-powered toothbrushes require you to provide all or most of the brushing action, moving the brush back and forth along all sides of your teeth and gums. In contrast, rechargeable electric toothbrushes provide the cleaning action while you need only guide it along all surfaces.
What is the difference between all the electric toothbrushes? âșThe difference between them is the brush head which comes in the box (eg. CrossAction 1000 will have a CrossAction toothbrush head), and the color of the toothbrush handle. These models oscillate at 8,800 movements per minute and 20,000 pulsations per minute.
Is there a big difference between electric toothbrushes? âșThe main differences between the two are speed of brushing and coverage. Electric toothbrushes have brush heads that rotate at a rate of about 2,500 to 7,500 strokes per minute, compared to about 300 strokes per minutes when you brush with a manual toothbrush.
Why is the three pin plug preferred than a two pin plug? âșIn comparison to a 2-pin connector, 3-pin connectors safeguard our safety from current. In comparison to a 2-pin connector, 3-pin plugs limit the amount of power that may pass through the circuit. As a result, 3-pin plugs are safer than 2-pin plugs.
Why some appliances use a 2 pin plug and others have 3 pin plug? âș
Uses for Plugs with 3 and 2 Pins:
To prevent electrocution from leakage of electricity onto the metal body, all of these appliances must be earthed or grounded. Not to mention, the three-pin plugs from Girish Switches provide more safety against insulation failures compared to 2 pin plugs.
However, if you need to plug an appliance power cord with three prongs into a two-prong outlet, there is only one way to do it safely, and that's by using an outlet plug adapterâbut only by using it correctly. Two-prong outlets are not grounded.
How do I know if my 2 prong outlet is grounded? âșStep 1: Check for ground
Insert one prong of a circuit tester into the receptacle's hot slot (the shorter one), and touch the other to a screw that secures the cover plate. The tester should light up. If it does not, the box is not grounded.
Plug block adaptors are particularly hazardous as the weight of the plugs and leads attached to it can put strain on the pins, causing it to pull out the socket, creating a poor connection, overheating and fires.
What is a standard 2 prong plug called? âșWhat is a 2-prong plug called? Originally called Nema 1-15 when it was invented by Harvey Hubbell II, two-pronged plugs are now known as Type-A plugs. These types of ungrounded plugs are pretty common in North and Central America.
Are 2 prong outlets outdated? âșYes. This is because they've been grandfathered in from old technology standards. The National Electric Code says two-prong outlets are allowed in homes as long as they are working properly. HOWEVER, this is not recommended because they are not grounded.
Can I use a 3 prong cord on a 2 prong device? âșSo, while it's technically okay to use a three-prong extension cord on a two-prong appliance, it's extremely dangerous. Stick to using two prongs for small appliances and three prongs for larger ones to be on the safe side.
Can you charge an electric toothbrush without the head? âșAn electric toothbrush battery can recharge even though there aren't any metal contacts. If you own an electric toothbrush, there's a good chance that it has a completely sealed toothbrush unit. The toothbrush rests on the charger without any metal contacts to connect the toothbrush to the base.
Do you go back and forth with electric toothbrush? âșPlace the brush on the outside of each tooth for a few seconds at a time. There's no need to press hard or scrub back and forthâthe electric toothbrush will do that for you. Some brands may even buzz at you if you're applying too much pressure.
Should you angle an electric toothbrush? âșThe actual positioning of your toothbrush head is also important. 'Place the head of your electric toothbrush at a 45 degree angle to the gum line, ensuring the bristles are in contact with both the surface of the teeth and the gum line' says Theodora, 'this is the most efficient brushing technique'.
Can you use Oral-B electric toothbrush on tongue? âș
Electric toothbrushes can also be used to brush your tongue and the roof of your mouth. Your tongue and soft tissues can harbour lots of bacteria too and need to be cleaned as well as your teeth.
Can I use any adapter with Oral B? âșVERY IMPORTANT: The voltage rating of the charger and the voltage in the outlet have to be the same in order to use the product without damaging it. If the charger voltage and the country outlet voltage match, but the plug is a different shape (doesn't fit the socket), they can use a plug adapter.
Can you put a 2-pin plug in a 3-pin socket? âșIs it safe to put a 2-pin plug in a 3-pin socket? Yes. Appliances with 2-pin plugs are double-insulated, meaning that the safety reason for needing the grounding or 3rd pin have been eliminated.
Can you put A 3-pin plug on A 2 pin? âșYes, it is safe to replace a 2-pin plug with a 3-pin plug, but be completely aware that the ground pin does no good at all unless there happened to be a third ground conductor in the original (or replacement) cord and you connected it appropriately.
Why is one pin in A 3-pin plug longer and thicker than the other two pins? âșEarth pin is thicker so that it does not enter into the live or neutral sockets. It is made longer so that it gets connected to the earth terminal earlier than the live and neutral pins. This ensures the safety of the user. Q.
Why some appliances use A 2 pin plug and others have 3-pin plug? âșUses for Plugs with 3 and 2 Pins:
To prevent electrocution from leakage of electricity onto the metal body, all of these appliances must be earthed or grounded. Not to mention, the three-pin plugs from Girish Switches provide more safety against insulation failures compared to 2 pin plugs.
Is it safe to put a 2-pin plug in a 3-pin socket? Yes. Appliances with 2-pin plugs are double-insulated, meaning that the safety reason for needing the grounding or 3rd pin have been eliminated.
What is the difference between a 2 pin and 3 pin power adapter? âșTwo-prong vs three-prong outlet: What's the difference? The main difference between a two-prong outlet and a three-prong outlet is that a three-prong outlet has a ground wire, while a two-prong outlet doesn't.
What is the difference between a 2 pin and 3 pin outlet? âșBoth kinds of outlets feature hot and neutral wires, but the big difference is that three-prong outlets have a grounding wire, while two-prong outlets don't have one. Since three-prong outlets feature this grounding wire, they're much safer than two-prong outlets.
What is difference between earth and neutral? âșNeutral has no current at all. The major difference between the two is that earthing provides you with a grounding point, that idle the current moves into the earth while the neutral provides you with a returning point for the flow of electricity, that is the electricity wire just returns back.
What are the two pin plugs called? âș
Europlugs are non-earthed plugs that have have two round pins with a diameter of 4.0 mm, positioned ca. 19 mm apart. Europlugs are 35.3 mm wide and 13.7 mm thick and have a characteristic shape with hexagonal sides. They are designed for currents up to 2.5A - 250V.
Why do some plugs not have an earth pin? âșSome appliances, such as vacuum cleaners and electric drills, do not have an earth wire. This is because they have plastic casings, or they have been designed so that the live wire cannot touch the casing. As a result, the casing cannot give an electric shock, even if the wires inside become loose.
Are 3 pin plugs safer than 2 pin? âșIn comparison to a 2-pin connector, 3-pin plugs limit the amount of power that may pass through the circuit. As a result, 3-pin plugs are safer than 2-pin plugs.
What is the difference between a 2 prong and 3 prong power supply? âșBoth two-prong and three-prong outlets have one neutral wire and one hot wire. The primary difference between the two is that three-prong outlets also have what is called a grounding wire. This third wire protects your home from shocks and fires by tripping the electrical panel after a power surge has occurred.
What does a 3 prong to 2 prong adapter do? âșA three-prong plug adapter, also known as a pigtail adapter, is used to connect a three-prong cord to an old-fashioned two-slot outlet. This little mechanism offers a simple solution to connect modern appliances and electronic systems into an older 2-prong electrical outlet.
Can I use 2 pin plug in the USA? âș2 or 3 prongs? Both work. You can use a two prong or a three prong to charge electronics.