Which UV Lamp Should You Choose for Gel Nails? (The Wattage Myth)
Your UV lamp is your most important piece of equipment: without proper curing, even the best gel polish peels off. But the lamp market is full of misleading wattage claims — here is what actually matters.
The wattage myth: Why 48W tells you nothing
Many lamps advertise "48W" or "72W" — but wattage measures power consumption, not curing ability. What decides whether your gel cures properly is the wavelength (gel products cure at 365 + 405 nanometres) and even light distribution across all five nails. A well-designed lamp with lower wattage cures better than a poorly constructed "72W" lamp.
What to look for
- Dual wavelength (365 + 405 nm) — so every gel type cures through.
- Even LED distribution — diodes all the way around, so your thumb cures too.
- Timer programs — 60 seconds is standard; a low-heat program is gold if you experience heat spikes with thicker layers.
- Size — your whole hand should rest flat and relaxed.
- A match with your gel system — lamp and gel from the same system are tested together. That is why the lamp is included in our starter kits.
Are UV lamps dangerous?
Nail lamps emit a low level of UV in short bursts. For extra peace of mind you can use fingerless UV gloves or sunscreen on your hands — but the most important thing is to follow the curing times and use a properly tested lamp. Read more in our article on UV light and safety, and browse our UV lamps.
Frequently asked questions
How many watts should a UV lamp have?
That is the wrong question: wattage measures power consumption. Look for a 365 + 405 nm wavelength and even light distribution — that is what determines the cure.
How long should gel polish cure in the lamp?
Typically 60 seconds per layer. Always follow the time for your gel system — under-cured gel peels and can irritate the skin.
Can I use a cheap lamp from the internet?
The risk is uneven or insufficient curing: the gel looks finished but is soft inside — and then it peels within days. Choose a lamp tested with your gel system.
Does the same lamp work for gel polish, builder gel and polygel?
Yes — a lamp with dual wavelength (365 + 405 nm) cures all our gel types.
No PFAS
