Features: 1.Tri-phosphor tube light color and brightness is very good. 2.Energy saving effect is obvious its average lamp life is up to 8000 hours. 3.In the starting and working processes it will not strobe so that there is no harm to our eyes. 4.Stage light it can turn any room office or other venue into a fun unforgettable party place. 5.Widely used in agriculture for traps insects to feed the fishes and the birds or kill the injurious insects in the forest and the farm and you also can use it to detect money distinguish true-false and stage lighting etc. Specifications: 1.Holder:E27 2.Type:Spiral Bulb 3.Wave Length:395-400nm 4.Voltage:AC 220V 5.Lifespan:About 8000 Hours 6.Features:Energy Saving Long Life Expectancy Low Power Consumption 7.Function:Outdoor Lighting Studio and Exhibition Lighting 8.Available Light Color:Purple 9.Wattage: 15W/20W/30W/40W Package Included: 1 x E27 Spiral Energy Saving Black Light Lamp