... electricity: downlight effect led light power consumption is only 20% of the halogen lamp, ◊ Long life: LED lamps and ... performance more outstanding); ◊ Open type cooling structure, the effect of heat dispelling better (light source directly exposed in the air ... 50°service life : 40000 Base type :E27Size: 66*121mmH Scope of application:The office, schools, shopping malls, hotels, household, etc... ...