1 Black Light : 40-watt black light emits ultraviolet (UV-A) light with a wavelength of 365 nm, which is very suitable for illuminating reactive surfaces without illuminating the surrounding area. 2 Holiday Lighting: Suitable for creating luminous effects with real white and neon colors in parties, clubs and Halloween decorations. 3 Verification and Detection: It is also very suitable for verifying the security functions on ID cards and currencies. Used to detect pet stains invisible to the naked eye on carpets or furniture. 4 Wide Application: Agricultural breeding, UV curing, fluorescence detection, currency checking, stage decoration, hand shadow dance, etc.5Material: Glass, Plastic, Metal Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store