Specification :

395nm UV LED KeyChains light (100%NEW)
Bulbs/mode: F5 LED ( UV Purple Light LED )
395nm UV LED KeyChains  test
WL:395-400nm
Material: Plastic (ROHS)
Size(mm): 41(L)X23.5(W)X9(H)
Weight(g): 7.5/8.5
Battery: 2X CR2016 3.0V button cell (included) 

Features :

Keychain UV Light:

1.Ultraviolet light keychain

2. Use for money detector, read words wiritten by invisible

3. Easy to carry and use anywhere.

4.Good quality, competitive price

5.Verious colors, designs, size are available