UV Black Light Fixtures 4 FT 20W LED T5 Integrated Single Fixture Extendable Tube Bulb Blackligh with Built-in ON/OFF Switch Plug for Party Hotel Club or DJ Stage (1 PACk) WIDE APPLICATION: Create stunning atmospheres for gigs, parties and DJ stage etc. works great with UV body paints & fluorescence. UV Curing paint, coatings and adhesive are available. PLUG-AND-PLAY: Easy to install. Just use the included snap joints to hang it up and insert the plug to light it on. 395-400nm wave length, no harmful to retinas or skin. No buzzing ballasts. No flickering. 35,000 hours rated life time. Contact us for an easy and fast replacement if any quality issue EXTENDABLE DESIGN: Could connect up to fixtures together with seamless connectors or connector cords.