Key specifications: Watt:4W/6W/8W/13W/ Bulb Type:T5 Base:G5 Wave Length:365nm 1.The lamps produce ultra-violet rays that make white fabrics fluorescence.2.These lamps are suitable for medical and pharmaceutical industries, photochemical reacation,jewelry and hisorical relics verifaication,special stage effect, note detector etc.The main data as follows: WD-05 T5 Blackligh Blue Fluorescent Lamps