UV-A level/ 395-400nm - harmless to the human body. Safer than 365Nm black lights, The best idea create stunning atmospheres at gigs or parties, works great with UV Body paint and fluorescent poster or painting display Easy Installation - It’s easy for you to finish your setup with the supplied super strong Double-sided adhesive pads or screws Multi-connections - Comes with 2pcs extended to 30cm connect cables, 2 pcs seamless connectors to connect multiple tubes, and there are 2 pcs safety covers to cover the joints for more secure. The grow light tube can be used singly or multiple in together. Bright and lightweight - New generation ultraviolet leds with high-end opitical lens. It is very bright for the size. and this uv black light is super lightweight, you can put it to anywhere you want. Widely use - great ideal for Halloween and Christmas glow parties lighting supplies. Just mounted in gym, studio, Club, churches, wedding or birthday party, galleries, disco, KTV, museums room ect. And lighting your dark ambient