This is a 2-Pin energy saving lamp that is equal to a 18 Watt CFL. Its 120 degree beam angle makes it a perfect retrofit for recessed and sconce lighting fixtures. It also has a 270 degree rotating base so you can get the best lumen coverage no matter how the fixture is built. This is a great lamp for residential buildings, hotels, and offices due to the lamp’s soft white color and frosted cover. Should be installed horizontally for best result.