1CFL Black (BLB) - 15 watts of black light (BLB) emits ultraviolet (UV-A) light at 463 nm, which is ideal for illuminating reactive surfaces without illuminating the surrounding area. 2Festive lighting - Ideal for creating radiance with real white and neon colors in parties, clubs and Halloween decorations. 3Verification and detection - Also very suitable for verifying security features on ID cards and currencies. Used to detect pet stains that are invisible to the naked eye on carpets or furniture. 4Easy installation - Easy to install and remove. 5Wide range of uses - Agricultural farming, UV curing, fluorescence detection, banknote verification, stage decoration, hand shadow dance, etc.1 x E27 UV Ultraviolet Fluorescent Blacklight