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eliteLord77 t1_j6dmal0 wrote

wrong. Lamps that emit ultraviolet (UV) radiation are standard in some nail salons to speed-dry regular manicures and to set gel manicures. These lamps can be called UV lamps or LED lamps and both emit UV radiation, predominantly UVA rays which have been linked to increased risk of skin cancer

cancer.org article

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EmilyU1F984 t1_j6gmkg4 wrote

Those UV leds are cheap 400nm ones. That could be considered visible light. I mean it IS visible light.

You can cure the nail polish in the same 120 seconds by going out around noon in summer.

Soo unless you are avoiding the summer sun that much; LEDs won‘t make a difference.

The problem isn‘t UV LEDs it’s using 50W UV lamps where all of that energy is in the UV spectrum.

Rather than an LED lamp running on a 5V 2A USB supply..

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