This is a very useful keychain UV Black light, perfect to charge your glow in the dark jewelry. Easier to press with the small resin logo sticker!

This is for 1 pc

395nm UV Led, the best for glow in the dark product.

After 15-20 seconds charging it will make your jewelry glow instantly. This is for one keychain black light.

I always have one in my purse, if you want to make your jewelry glow in a darker place like a restaurant or with your friends outside at night, it's fantastic!

Press and hold the push button to turn on the light. Another selector ON/OFF switch is provided for switching ON the light continuously.

The battery can be change when needed.