3 Best 12v Hair Straighteners (in Car) – Buying Guide

Ever felt the necessity of straightening your hair in your car?

Think about those situations when disarranged hair makes you uncomfortable right before your office time, or you’ve gone camping where it’s difficult to tame your unruly hair, or maybe you have forgotten to sort your hair on a night out.

Featured Image of Best 12V Flat Irons

Yes, those situations when the urge to have a flat iron in your car becomes too evident. Thankfully, there are 12v hair straighteners in the market nowadays, making it possible to style your hair right from your car seat.

In this article, we’ll talk about various aspects of the most popular 12v flat irons in the market and discuss the goodness they bring along.

If you see the value in these products and choose to purchase via my referral links, I may earn a small commission at no extra cost to you.

Check: How Many Watts is a Straightener

A Quick Sneak Peek

We’ve picked the ones that won’t compromise your great look or peace of mind.

Have a quick sneak peek at the best 12-volt hair straighteners before we go down to their details.

Top 12v Hair Straighteners

With the increasing popularity of using cigarette lighter outlets for running electronic devices, the idea of hairstyling on the go is pretty new. The trend has become very popular in Europe but yet to gain mass appreciation in the US. So the likes of Babyliss Pro, CHI, HSI, Conair Infiniti, Andis, Karmin, and similar big names in the industry are yet to produce them mass-market.

But, there are other brands too who wasted no time giving the American people the opportunity to embrace this new trend. Down below, we’ve discussed five of the most talked-about 12v flat irons.

Before we go into their details, let’s compare their key features through the comparative chart, making it easier for you to understand.

Jeegol Travel Tourmaline Ionic Ceramic Mini Hair Straightener

Ranking Position: 1

Our Opinion: Winner

Jeegol brings this tiny and super-efficient flat iron that tops our list with its stunning look and performance. The manufacturers have put all their efforts into it to make sure you look your best even with hasty attempts.

The straightening iron comes with ceramic plates like all other 12v flat irons. But what makes it special is the tourmaline coating it has on its plate top. The coating is known for providing even heat distribution in every hair section and making the plates last longer. This feature makes it stand out among the others on our list.

The plates start heating up instantly as soon as you plug them in and gradually heats up to the highest temperature (400°F). It gets ready within a minute, saving your time.

Having a universal 21.18mm plug, the iron connects to every vehicle model with a cigarette lighter outlet or a 12-volt auxiliary port. So you won’t have to worry whether you’re camping in your caravan, rushing for a party, or even boating in the surge of a river.

Moreover, the device comes with an adjustable twist lock on its plug, so it never comes off annoyingly in the middle of your styling session. The adjustable clips by its sideways make sure it fits in properly into every twelve-volt receptacle on the earth. A 4.5-inch long cord enables you to maneuver the iron inside your car easily.

The tiny flat iron works on 22-watt power input, which keeps it very much on balance while working. It hardly pulls out more than 100 watts from your car battery, thanks to the efficient PTC heating system it comes with. So you can continue your styling without having to worry about your car battery running out or any possible damage to your hair.

In addition to further safety, the flat iron also includes a built-in fuse that ensures accurate conduction throughout your styling duration. Besides, it eliminates any possibility of melt-down of the inner components of the flat iron. And the certification of the NRTL cuts off your worries regarding any hazardous impact.

With so many conveniences, a great stunning look, and such tiny a size, it’s a flat iron you’ll definitely love to keep in your car. Wherever you travel, go camping, or ease in your caravan, this car flat iron will make sure your hair looks great all the time.

A Few Additional Features

  • Ceramic plates with tourmaline coating.
  • The temperature reaches up to 400°F. Suits every hair type.
  • 6.5-inch total body length enables convenient storage in the smallest of the glove compartment.
  • 0.5-inch plate width.
  • 60 seconds quick heating.
  • Ionic technology for frizz reduction.

READ MORE: Best Hair Styler for Waves

Inmiss Portable Plate Car Mini Travel Hair Straightener

Ranking Position: 2

Our Opinion: Runner-up

This beautifully designed Inmiss mini portable flat iron takes the second spot on our list to fall behind the JEEGOL straightening iron, which boasts a longer cord, tourmaline coating, and more wattage.

The flower-themed 12-volt flat iron comes with a range of convenient features that’ll make you want it in your car. Apart from the great look, it offers you a 1-inch ceramic plate, which is wide enough to provide you quicker operations.

The plates gradually start heating up once you’ve plugged them into your cigarette lighter outlet. It reaches a maximum of 390°F in less than two minutes.

A connector plug of universal measurement connects to both the 12v auxiliary port and the cigarette lighter socket of your car. The universal plug also enables you to use the hair straightener in a wide range of supported vehicles apart from private cars. You can secure it in its place with the adjustable twist lock it provides.

With 18 watts of power input, the cigarette lighter hair straightener pulls up to 120 watts of battery power. Relatively lower power consumption means it doesn’t take out much of your car’s battery life. Implementing a PTC heater adds up to the power-saving device, which also provides safety when you use it too frequently.

Talking about safety, the NRTL certified flat iron also boasts a built-in fuse eliminating any chances of possible hazardous emissions due to improper conduction. A 4-inch cord is long enough to provide convenient maneuvering.

The stylish look, doubled up by convenient usage, definitely makes it the fashionable inclusion every woman desires in their car.

A Few Additional Features

  • Heats up to a maximum of 390°F
  • Suitable for every hair type
  • 7-inch body length. Easily fits into every glove compartment
  • 1 inch wide ceramic plates
  • Ionic technology for frizz reduction
  • Heats up within 90 seconds

Check: Beach Wave Hair Tools

Gone Traveling 12v Travel Hair Straightener by Boyz Toyz

Ranking Position: 3

Our Opinion: An Alternate Preference

You may want to consider this 12-volts travel flat iron from Boyz Toyz, another contender that can well provide decent car hair styling.

However, this unit doesn’t live up to their ranks, for it reaches no more than 350°F of temperature, meaning it’ll be a little bit harder for you to tame thicker hair. But it does include the other vital features to compete with the numerous flat irons of the same kind.

You can connect this flat iron to any vehicle having a cigarette lighter outlet, thanks to its universal 21.18mm plug diameter. It would help if you weren’t concerned about it coming off the receptacle, for it lets you secure it into place with a twist lock. And with a 4-inch long cord, you’ll hardly face maneuvering problems.

Importantly, it comes with a wattage of 18-watts, ensuring the battery power remains balanced. It doesn’t pull juice more than 120 watts. The inclusion of a built-in fuse and PTC heating system adds further security to the NRTL certified hair straightener.

You can surely count on this flat iron for quick fix-ups before office time, campings, or parties, for it’s able to provide risk-free operation at much ease.

A Few Additional Features

  • 1-inch wide ceramic plates
  • The total body length measures 9 inches
  • Gets ready within 90 seconds
  • Ionic technology for frizz reduction

Check: Best Curved Flat Iron

The Reason We Do Not Recommend the Following

Streetwise Folding Travel Hair Straightener

This car flat iron from Streetwise comes with 1-inch ceramic plates wide enough to match the other straighteners on our list. The 8-inch flat iron also heats up to 450°F. But we could not recommend it for several reasons.

Firstly, the diameter of its plug is 20.88 millimeters, which doesn’t go according to the universal measurement. Meaning, it will fit into only private car outlets and not the likes of caravans or RVs. You cannot plug this flat iron into outlets of car models outside the USA if you ever fly abroad.

Secondly, the lack of a built-in fuse means the risk of improper conduction and hazardous impacts would be there while styling. Such occurrence is highly possible for the flat iron uses an MCH heater that pulls out a lot of power for quick heating.

Besides, it runs on a wattage of only 15 watts, meaning the flow of current. Therefore, the temperature may not remain constant throughout a styling session.

Universal Textiles 12V Travel Hair Straightener

This car flat iron from Universal Textiles boasts 1.25-inch ceramic plates, wider than the plates of any other models on our list. The straightener also heats up to 400°F. It has still failed to make our choice list, for it lacks some of the vital features.

Like the previous model, this unit also lacks a universal plug input (20.73mm). So you’ll have trouble if you own an older car model or when you fly out to Europe or Asia.

The curt cord length (3.5 ft.) is also a major concern. You’ll surely find it hard to reach your hair strands. The lack of an adjustable twist-lock further complicates the styling since it’s always possible for the plug to come off.

The absence of a built-in fuse and PTC heating system adds to the penury of this flat iron. You’ll surely not want to feel insecure while styling in your car, damaging both your car battery and your hair.

A Comparative Chart for Clarification

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12V Hair Straighteners Buying Guide

What Is a 12v Hair Straightener?

In simple words, it’s the type of hair straightener that uses the 12v power outlet or the car cigarette lighter of your car to power up. They are also known as cigarette lighter outlet hair straightener, car lighter outlet hair straightener, or simply a car hair straightener. They come with a design and mechanism that lets you style outdoors.

Every car nowadays comes with cigarette lighter outlets or an auxiliary 12v power outlet. Trucks, caravans, SUVs, RVs, and even boats are also seen to be equipped with those as well. The purpose of such sockets didn’t include serving your hair in the first place, though.

With rapidly gained popularity, the intention of serving smokers in their cars has expanded to various other useful contexts. It’s now the elementary method of delivering power in your portable electronics in your car. So, the flat iron manufacturers wasted no time allowing you to style your hair in your car.

A 12v flat iron comes with 15-25-watt power input and juices up to 200 watts from your car battery while working. These low-powered flat irons are intended to serve you with simple touch-ups and not heavy usage. Therefore, they don’t produce professional-grade results. But they come real handy when you want your hair to look great while camping, boating, or traveling.

Who Can Use It?

When it comes to talking about its usage, the first thing you must remember is, 12v flat irons are not meant for professional use. Their purpose is neither serving you at home nor producing salon grade results. So they aren’t meant for serious styling.

So how would such straighteners suit your hair? You’ll need a 12-volt straightener if you’re afraid of disheveled hair right before the start of your office time.

Using Hair Straightener in a Car

Or maybe you’ll need one when you’re rushing for a party in your car(you can also go with an excellent quality travel-friendly hair straightener in these situations), and you quickly need to fix your disarranged hair. And they will be in your rescue when you want to look your best while camping. Only you’ll have to plug it into the caravan lighter outlet.

12v straighteners are not specialized for any particular hair type. You can use them for thick hair, thin hair, or extremely delicate hair. They are a quick solution for eliminating frizz and kinks when in shortage of time. But again, they are only for touch-ups and quick fixes, not for complete hair styling downright.

In terms of hair length, though, these portable hair straighteners work great on short hair. For the ease of maneuvering and faster fixes, short-haired girls or even boys will love to keep one of these irons in the glove compartment of their cars.

Differences Between Travel Flat Irons and 12V Flat Iron

Many people tend to mistake 12-volt flat irons for travel flat irons where in reality, they are poles apart. Let’s figure out why.


Connectivity primarily differentiates the two flat iron types. Where a travel flat iron comes with dual voltage (110-120V and 220-240V) output plugs that connect to your wall sockets, a 12v iron connects to your 12-volt auxiliary port or cigarette lighter outlet of your vehicle. Therefore, travel flat irons run on AC while the latter runs on DC.

Plate Material & Temperature Setting

Hair Straightener Temperature

These two facts cannot be overlooked when purchasing a travel flat iron. Titanium plates for thick hair, Ceramic for thin, that’s how you’ll make the selection. But you won’t have such options when buying a 12 Volt iron. They all come with ceramic plates.

It’s also essential for a travel hair straightener to have an adjustable temperature setting for different hair types. On the other hand, you won’t find any temperature setting option in a 12 Volt hair straightener.


The previous segments should have clarified this by now. Travel hair straighteners are for those who want to use them both at home and abroad and use them for regular purposes with the high-grade finish.

For instance, you’ll need one of them when flying out to Europe or Asia, where the connectivity system and environment are different than the USA. A good travel iron generally provides a complete styling solution.

A 12v flat iron, on the other hand, is for only quick fix-ups or touch-ups when in a vehicle. With a universal power socket, they can suit vehicles in every corner of the earth.

How You’ll Benefit From a 12v Flat Iron

12 Volt hair straighteners are your styler on the go. Let’s take a look at how you can benefit from them.

  • They are simple plug-and-play devices to be used in vehicles.
  • Connects to both the 12v auxiliary power outlet and cigarette lighter outlet of vehicles.
  • Supports a wide range of vehicles, including private cars, SUVs, RVs, trucks, caravans, and even water vehicles like yachts and boats.
  • They are low-cost flat irons, rarely cost more than 30 dollars.
  • A good 12 Volt flat iron provides constant heat for up to 8 minutes even after you’ve unplugged them, therefore, saves power.
  • Suits every type of hair, and hardly ruins conditioned hair with special treatments.
  • Great, effective quick solution for people wanting their hair to look prim in rushed situations.
  • It’s the best and easiest styling solution for those who frequently throw riverside parties along with caravans, and teens who love both camping and nice hair.

The Limitations

The low-powered mini flat irons aren’t professional-grade after all. So it’s quite understandable that they’d have limitations. Take a look at their limitations down below.

  • They don’t connect directly to AC wall sockets.
  • Not suitable for regular use at home. Hence, they don’t provide a complete hairstyling solution.
  • Doesn’t provide heat adjustment settings. It heats up to the maximum temperature gradually after you’ve plugged them in. So you must act real quick if you have delicate hair, or you can heat it up and then unplug after a certain period.
  • No auto-shutoff feature. So you must be mindful to plug it out and make sure it has a PTC heating system to prevent damages.

The Core Features of a 12v Flat iron

Styling your hair sitting in your car is the absolute delight that your 12 Volt hair straightener provides. The straightening irons come with several features that add up to their uniqueness. We’ll now get to know more about them.

Powers From 12V Auxiliary Power Outlet/cigarette Lighter Outlet

It’s obvious, isn’t it? It’s the very trait the flat iron is named after. They connect to your car’s twelve volts auxiliary port or the cigarette lighter outlet to power up and start getting hot in no time.

12V Hair Straightener Powered From Vehicle Power Socket

The DC-powered hair straighteners can power up from every vehicle having such outlets. These days almost every motor transport system comes with 12 volts sockets to support necessary outdoor connectivity. Car models older than 20 years might be an exception in rare cases, so you should always check whether your car supports it or not.

However, it’s still possible to run these flat irons from a regular AC connection. In that case, you’ll need voltage converters. Check the ‘Alternatives’ section of this article to know more.

Measurement of the Plugs

The 12v flat irons come with plugs pretty much different from the regular plug inputs. They nearly round in shape plugs inserts into particular receptacles in your car, which are also round. You can find one on the front panel of your car.

The diameter of the plugs can vary in terms of inside and outside depending on the country.

The USA-only models come with slightly smaller plugs compared to the European models. The diameter can be ranged from 20.73mm to 21.18mm.

You would be wise to pick a model having the biggest diameter for a couple of reasons. Firstly, they fit older car models with their width fixed with no adjustable clips inside the receptacles. Secondly, 21.18mm is the universal measurement for 12v plugs to fit every vehicle model globally, including European and Asian models, not only the US.

We suggest avoiding flat irons with 20.73-20.88mm plug diameter since they only cover American private car models and no other vehicle type.

PTC Heater

PTC heating system is the safest of all when it comes to heating your flat iron plates. This system maintains a balanced insulation performance throughout the duration of hairstyling. It’s a safety-expert system that protects the power source, the flat iron, and your hair altogether.

You’ll want to have it in your 12-V flat iron for the safety it’ll provide to your car battery as well. PTC heaters consume power with the maintenance of perfect moderation, so the battery doesn’t get heavily juiced out.

Some 12-V flat irons are found deploying Metal Ceramic Heater (MCH) for the heat up faster than PTC heaters. However, quick heating isn’t everything, even though you think it’ll save you time. An MCH heater takes in a lot of battery life to heat up faster, resulting in a spate of quick replacements. Besides, the risk of overheating would be there to cause damage to delicate hair.

Low Power Input

Not only do these straightening irons use significantly lower voltage, but also a low power input accordingly. Where a regular flat iron runs on 45-70 watts power inputs, your 12v flat iron will only use 15-28 watts.

It’s important for cigarette lighter flat irons to have lower power inputs—the lower the input, the lower the output. A regular iron with 45 watts can juice up to 1000 watts of battery power, where a good car hair straightener will only reach up to 150 watts.

18-24 watts is our recommended range in this regard.  Within this range, your iron will hardly snag, and the heat flow will remain constant while it’ll also save up to 25% battery power.

There are also flat irons with wattage lower or higher than this range. The one with lower decreases heating performance where the higher wanes battery life.

Built-in Fuse

Every car hair straightener must come with a built-in fuse in its plugs. In general, these flat irons’ inner components are highly delicate since they’re manufactured for infrequent use. So there always remains the possibility of electrical hazards inside in the occurrence of excessive flow of current.

A built-in fuse eliminates those possibilities by automatically separating into two pieces to break the circuit when such a hazardous malfunction happens. They are also necessary for proper conduction. With the absence of a fuse, the excessive current flow may continue without your knowledge and cause severe damage to both your car’s power system and your flat iron.

Importance of NRTL/CE Approval

NRTL(Nationally Recognized Testing Laboratory) is a certification for products that guarantee the product meets safety, health, and environmental protection standard. It’s similar to the European standard CE approval.

This certification is significantly important for 12v flat irons since there’s always the possibility of chemical hazards when you use them. The car batteries contain toxic elements which may cause emissions harmful to the environment when a low-grade flat iron runs unusually.

You can remain worry-free from this issue if your flat iron is marked as NRTL approved.

Cord Length

Cord Length of 12V Hair Straightener

12v flat irons come with much shorter cords compared to their traditional counterparts. They don’t provide you with the ease of 9 ft. salon-grade swivel cords. Rather, they offer normal electrical cords with a longitude of no more than 4.5 ft.

The length may vary within the range of 3.5-4.5 feet. We suggest you go for the one with the longest cord (4.5 ft.) for it’ll assist you with easeful maneuvering. Cords shorter than 4 feet make it harder for you to reach the tricky areas of your hair.

Adjustable Twist Locks for Plugs

It’s a convenient feature you wouldn’t want your car flat iron to miss out on. Say, how annoying it would be when the plug comes off of the socket in the middle of your styling session all of a sudden?

Thankfully, with a twist lock, you can ensure the plug stays put throughout the entirety of a session and doesn’t come off. Moreover, the adjustable clips add further support for an easy insertion even into the smallest of the auxiliary receptacles.

A Few Additional Features

Among other notable features of 12v hair straighteners, you’ll find-

  • Ceramic Plates.
  • As small as 6-9 ft. total body length. Easy to store in the glove compartment.
  • Up to 400 degrees Fahrenheit non-adjustable temperature.
  • Ionic technology

The Must-have Features of an Ideal 12v Hair Straightener

Before making a purchase, don’t forget to compare the core features your flat iron must-have. We’ve created the below chart for your assistance.

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You might think that you don’t want to purchase a 12v flat iron but still feel the necessity of hairstyling on the go. Or maybe you have already purchased one, and now you want to use it at your home as well. Don’t worry. We’ve got both situations covered.

For Traditional Flat Iron Use in Your Car

You can use your regular flat iron in your car using a power inverter. Inverters alter the power inputs from DC to AC. An inverter also makes it possible for you to use the regular iron without wasting much of the battery power. For this method, you’ll need a power inverter having a wattage of at least 300-watts.

Ampeak 1000W and Loldis 500W are among our favorite power inverters to use cars. You may also go for BESTEK 300W if you’re on a tight budget.

For Using a 12V Flat Iron at Home

To make it happen, you have to do quite the opposite. You’ll need voltage converters rather than inverters to alter the power input from DC to AC. Voltage converters are found in both 110-120v and 220-240v. It’s up to you whether to go for a dual voltage or not. But you must make sure it has a wattage of at least 130 watts.

RoyPow Power Supply is a dual voltage converter we like for optimal use. FYL Dual and Wagan EL9903 are also two of the most efficient converters in the market for car flat iron use at home.

Final Say

These inexpensive yet effective hair straighteners are the precise investments you’d certainly look for if you always prioritize good hair on the go.

By now, you must have understood how these 12v flat irons work, and what you need to consider for making the best selection. Get the one you prefer and keep looking stylish everywhere you go.

Reviewed By


  1. I just loved this piece of review article. You guys hooked me at the very first line. And I don’t regret it. The more I read this article, the more I realized that I had very little idea about a car hair straightener.

    The way you explained the difference between a travel flat iron and a 12v Car Hair Straightener is also commendable. Anyone and everyone, who doesn’t have any prior knowledge are also obliged to understand this topic.

    I also loved the fact that you have included the alternative options of this flat iron so that people can also use it at home.

    Very well thought of and well written.

    Keep it up.

    • Dear Elisa,

      Thank you very much for your kind and praising words. We are glad that you find this piece of article helpful.

      Please keep coming back for more review articles in the future.

  2. Hello there,

    There is no doubt that this is an excellent piece of review article with lots of information and data. I enjoyed reading it thoroughly.

    However, have a question. In this article, I don’t see any flat irons from any well-known, reputed brand. Why is that? I would have loved to see and might also buy car flat irons from a popular brand rather than some “not so well-known” ones.

    I will be waiting for your answer.

    • Dear Lisa,

      First of all, thank you very much for taking the time and writing to us. We appreciate our readers’ feedback.

      Secondly, we would have also loved to review and include some car hair straighteners from popular brands. But, unfortunately, they don’t manufacture this type of flat irons and therefore, there is none in this list.

      We hope you understand the situation here.

      Please keep coming back for more articles in the future.

  3. Hi,

    I am a regular visitor to your blog and have always been a loyal reader of your articles; they are descriptive, informative yet not boring. But I am sorry to say that I didn’t like this article a bit. It is super length and boring. I lost all the interest before I could even finish it.

    Please be more precise and try to make the writing less length. Otherwise, your readers might not even read the whole review.

    This is not criticism. It’s just a friendly piece of advice.

    I wish you all the very best for your future.

    • Dear Debbie,

      Thank you very much for writing feedback for us. Your responses help us to write and think better.

      We also want to thank you for your suggestion. We would definitely keep it in mind in the future.

      Please keep coming back for more articles in the future.

  4. After reading your article, I have Jeegol Travel Tourmaline Ionic Ceramic Mini Hair Straightener for my sister on her birthday. She was very happy. She is always on the go and I think it would help her be uber-stylish anywhere and everywhere she goes.

    Thank you for putting up this article.

    Keep up the good work.

    • Dear Andrew,

      We are glad that our article helped you in some way or the other. Please keep coming back for more in the future.


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