Uv lamp, uv light, uv gel nail, nail uv lamp, nail uv light, nail beauty, nail art Model: ASN-N9W-2 Name: 9watts nail gel uv lamp Description: Safe and effective with top coats and gels. We make it in several voltages for overseas sales. Voltage: 220-240V 50HZ; 100-110V 60HZ Main wavelength: 370nm. (This wavelength belongs to the visible light harmless to the eyes, but better not to look straight the tube long time) Usage: 1) Plug in, and press the O/I switch to position "I", the machine begins to operate. 2) Using 1pcs 9W UV Bulbs, please replace the bulbs regularly for keeping the efficiency. Any color is available, but the quantity should not less than 1000pcs.