... controller voltage:AC180-250V 50HZ filament lamp:100W Three-wire system ceiling energy saving controller Sound and light controlled ... With power saving, no contacting, no spark, longevity, Security and ReliableApply to: stair passageway, gallery, wash room, garage, storage ... or installed in the lamp .Technical parameters:voltage:AC180-250V 50HZpowerfilament lamp≤100W , energy saving lamp/daylight lam/ ...