POWERFUL BLACK LIGHTS: 38W blacklight with 66 units LED (50,000 hours of long life, high power efficiency), 120 degree wide beam angle, Wavelength: 385-400 nm.It makes most reactive pigments, paints, dyes, etc. glow super cool.Especially with neon-colored objects, the blacklights work super cool for visible fluorescent materials; EFFICENT COOLING: This 38W black light flood light fixture is designed with a fin-type heat sink, which means it acts like a radiator to dissipate heat; IP66 WATERPROOF & VARIOUS APPLICATION: IP66 Waterproof rating, ideal for both indoor and outdoor usage. Perfect for Halloween outdoor lights, Christmas, Club, party, aquarium, band, theatrical performances, etc; EASY INSTALLATION: Coming with a 5.0ft/ 1.5m Power Cord with US plug, the black light can be used anywhere with a power outlet, No need for wiring. A power switch helps to turn on/ off the light conveniently. A adjustable bracket make it easy to position; WIDELY APPLICATION: Perfect for Halloween decor