Technical Data: * Voltage: AC220V/AC110V; * Watt: 15W/18W/20W/25W; * Base: E27/B22; * Lamp Cover: Column Shape * Luminous Flux: 60lm/W; * Color Temp: 2700K/4100K/6400K; * A.V. Life: 8000hrs; The lamps used for supermarkets, hotels, warehouse, workshops, sports facility illumination, broad lighting, large-scale public place illumination, factory illumination and so on. And also for the plant growing lighting.