A Guide to UV vs LED Nail Lamps – What are the Differences?

"What's the difference between a UV and an LED nail lamp, and which one do I actually need?" It's one of the questions we're asked most, and the answer matters: your lamp is what turns gel polish from liquid into a hard, glossy, long-lasting finish.

The short version is that LED is the modern standard, and it's the technology every Mylee lamp uses. But it's worth understanding why, so you can choose with confidence. Here's everything you need to know.

At a glance:

• The job: Both UV and LED lamps cure (set and harden) gel polish. Regular polish just air-dries and won't cure under either.
• The difference: LED cures far faster, lasts much longer and is the current industry standard. UV is the older technology.
• Mylee's range: We're LED only. Our Grande and Petite LED Lamps cure all Mylee gel polishes in 60 seconds.

What does a nail lamp actually do?

Let's start with the basics. A nail lamp cures your gel polish, which simply means it sets and hardens each layer so your manicure lasts.

This is the key difference from regular polish. Gel nail polish contains oligomers and photoinitiators that link together when exposed to light. Regular polish air-dries and chips within days, while cured gel stays chip-free for up to 3 weeks.

You need to cure every layer you apply, from your base coat to your colour, to your top coat. Even a small nail art detail needs a quick flash cure under the curing lamp to lock it in.

UV vs LED: the key differences

Both UV and LED lamps are the two types most often compared for curing gel polish. The difference is the technology inside them, and it makes a real, practical difference to your manicure.

Curing time

This is where curing times differ most. A UV lamp typically takes around 2 minutes to cure a single layer, while a Mylee LED lamp cures our nail polish in about 60 seconds. It's useful to know that the wattage of a lamp only measures the amount of electricity it draws in, not how effectively it uses that power. So, you can actually achieve a better cure with a lower-watt lamp, depending on other factors like bulb efficiency and location. Our Mylee Pro LED lamp only uses 18 watts but converts that into 20 mW/cm2 UV light intensity, making it super energy efficient!

LED lamps tend to cure faster than traditional UV lamps. LED manages this because its LED light is more targeted to the wavelengths gel needs to set. That speed adds up fast across a base coat, two colour layers and a top coat, turning a slow manicure into a quick one. You can even flash cure nail art in 15 to 30 seconds. Timer settings such as 10s, 30s, and 60s help accommodate different gel types.

Bulb lifespan

The bulbs are built differently, so they last for very different lengths of time. In traditional UV lamps, most bulbs have a life of about 1,000 hours and require bulb changes every 1,000 hours. With regular use, UV lamp bulbs should be changed every six months. UV bulbs dim and need replacing over time, which means an ongoing cost and a less reliable cure as they age.

LED bulbs last dramatically longer. Our Grande LED Lamp is built to last up to 50,000 hours, and our Petite LED Lamp up to 20,000, so you're not thinking about replacements, just your next manicure.

Curing technology

A good lamp doesn't just shine light at your nails, it cures them evenly. Our Grande LED Lamp uses Convex Curing Technology: a curved design that bounces light around the lamp and off the reflective base, directing it to every angle of the nail.

That means the light reaches your whole nail at once, so your thumb and the sides of your nails cure just as fully as the surface facing the bulbs. It's the even cure that matters: proper bulb placement removes the dead zones that cause patchy curing, and patchy curing is what leads to lifting and peeling.

It's also why wattage isn't the thing to judge a lamp by. There's a lot of confusing information out there, but wattage only measures the electricity a lamp draws, not how well it turns that into a cure. A lower-wattage lamp can actually cure better, depending on the efficiency and placement of the bulbs and how reflective the inside of the lamp is. Our Grande LED Lamp cures beautifully on just 18 watts, because the technology does the work, not raw power, so you get a stronger cure while using less energy.

Whatever lamp you use, always cure each layer for the right amount of time. Darker shades and builder gels can need a little longer, and an under-cured manicure gives itself away: a dull finish instead of a bright shine, wrinkling, or a surface you can dent with a nail. If that happens, remove it and reapply in thinner layers rather than leaving uncured gel on the nail.

Pro tip: Thin layers are your best friend here. They cure fully and evenly, where thick coats trap uncured gel underneath a set surface, which is the most common cause of wrinkling and lifting.

Are LED nail lamps safe?

This is a question worth answering properly, because there's a common myth that only UV lamps emit UV light. In reality, both UV and LED lamps emit very small amounts of UV.

The reassuring part is the amount. Independent research, including guidance published by Harvard Health, has found the UV exposure from a nail lamp is very minimal, and numerous studies have found exposure during normal use to be minimal, far lower than a tanning bed or extended time in the sun. The exposure from one manicure is comparable to a brief walk.

Because most people cure their nails only once every 2 to 3 weeks, total exposure stays very low. If you'd like extra peace of mind, you can protect the skin with sunscreen or wear UV-protective manicure gloves beforehand, though anyone with extreme sensitivity may want to take extra precautions.

Pro tip: If you use SPF on your hands before a manicure, keep it well away from your nails. Any oil or cream on the nail plate can stop your gel adhering, which leads to lifting.

Will a nail lamp cure regular polish?

No, and this is a common one. Neither a UV nor an LED lamp will cure or dry regular nail polish.

Regular polish is formulated to air-dry in the open, not to cure under light the way gel does. Only gel polish responds to a lamp, which is part of why it lasts so much longer.

Which lamp should you choose?

Here's the honest answer: for speed, lifespan and reliability, LED wins, which is exactly why it's the industry standard and why every Mylee lamp is LED.

UV lamps still cure gel and you'll find older ones around, especially if someone started doing gel nails before LED became the norm, but they're slower, their bulbs fade, and the technology has moved on. There's no real reason to choose UV today when LED cures faster and lasts longer for a gel manicure.

So the more useful question isn't really "UV or LED?", it's "which LED lamp suits how I do my nails?" That choice depends on the kind of flawless manicure you want and whether you need home or salon convenience.

Meet the Mylee LED range

Every Mylee gel polish is designed to cure perfectly under our LED lamps in 60 seconds, so whichever you choose, you're getting a complete, even cure every time. (Our Super Pigment Builder Gel cures in 99 seconds, thanks to its high pigment level.)

Grande LED Lamp

Our premium lamp, built for both salons and homes, including use by nail technicians. It features Convex Curing Technology and 18 high-quality LED bulbs to cure all five fingers evenly from every angle, with four pre-set timers, automatic sensors for hands-free operation, a low heat mode for sensitive nails and builder gels, a removable base for pedicures, and a 50,000-hour lifespan. While many professional nail lamps are at least 36 watts, this lamp relies on bulb placement and design for performance.

Petite LED Lamp

Our compact, travel-friendly lamp, designed for fast, beginner-friendly manicures at home. It cures four fingers at a time with three pre-set timers, a clear countdown display and a 20,000-hour lifespan, delivering the same glossy, salon-quality results wherever you are.

Both lamps are compatible with all Mylee gel polishes, and both deliver that full, even cure that keeps your manicure chip-free for up to 3 weeks.

FAQs

What's the difference between a UV and LED nail lamp?

Both UV and LED lamps emit small amounts of UV light to cure gel polish, but LED, which stands for light emitting diodes, cures far faster, usually 60 seconds versus around 2 minutes for UV. UV lamps emit a broader spectrum, while LED uses a narrower light emitting range targeted to the gel. LED bulbs also last much longer and don't need replacing. LED is the modern standard, which is why every Mylee lamp is LED.

Are LED nail lamps safe to use?

Yes. Both LED and UV lamps emit very small amounts of UV, including low levels of uv radiation and uv rays, but research including guidance from Harvard Health shows the exposure during normal use is minimal, far lower than a tanning bed or time in the sun. As most people cure their nails only once every few weeks, total exposure stays very low. For extra reassurance, you can wear UV-protective gloves or apply sunscreen or SPF hand cream to the skin on the hands, keeping it away from the nails.

Does a nail lamp dry regular nail polish?

No. Regular polish air-dries in the open and won't cure under a UV or LED lamp. Only gel polish is formulated to cure under light, which is what gives it up to 3 weeks of chip-free wear.

How long do I cure Mylee gel polish for?

Cure each layer for 60 seconds under your Mylee LED lamp, working in order: base coat, colour (one layer at a time), then top coat last. Flash cure nail art for 15 to 30 seconds to hold it in place. The one exception is our Super Pigment Builder Gel, which cures in 99 seconds.

Can I use Mylee gel polish with any lamp?

For a guaranteed, even cure, use a Mylee LED lamp. Our gels and lamps are designed and tested together, so we can only promise a complete cure with our own lamps. We can't guarantee results with other brands' lamps.

Do nail salons use UV or LED lamps?

Most salons and many a nail tech professional now use LED. The faster curing time speeds up appointments and the longer bulb life makes them more reliable, which is why LED has become the professional standard. Our LED lamps are designed for both salon and at-home use, with features like a removable base for easy cleaning.

How do I know if my old lamp is UV or LED?

Check the model details in the instructions or online. You can often tell from the curing time too: UV lamps are slower, usually around 2 minutes a layer, while LED cures in roughly 60 seconds. If you're upgrading, an LED lamp will cure faster and last far longer.