This sealed beam 150 watt GE 19517 wide flood lamp has PAR46 bulb shape and a long life of 1,000 hours. The G53 base offers convenience of push in or screw terminals. Designed to last longer than standard lamps, lowering maintanence costs. Built to withstand shock and vibration for longer effective life with special supported filaments. Primarily used in mining, train, and locomotive lamps.