... on and off at prefixed illumination level. Model: LC-OA, LC-OB, LC-OCThe LC-O series (UL file No.:E340998)are used ... at dark and turn off at dawn. Specially, the LC-OB has a windowsetting to turn on/OFF the ... (applicable 127V - 230V)2) Rated frequency: 50/60Hz3) Load: LC-OA,OB /150W, OC/300W4) Light level: ON: <20Lux, ... : 1pc/box 200pcs/ctn Screw-in Type Lighting Sensor LC-O Series UL File No.:E340998