... on and off at prefixed illumination level. Model: LC-OA, LC-OB, LC-OC The LC-O series are used under the rain-proof environment ... bulb at dark and turn off at dawn. Specially, the LC-OB has a windowsetting to turn on/OFF the CdS. If ... -220V (applicable 127V - 230V)2) Rated frequency: 50/60Hz3) Load: LC-OA,OB /150W, OC/300W4) Light level: ON: <20Lux, OFF: <80Lux5 ...