The RCL156 is a 4-Pin omnidirectional LED equal to a 16-20 Watt CFL, designed to for recessed can and downlight applications. It can also be used in light-duty wallpacks. All 840 lumens are produced in a 360 degree beam angle that is ideal for Recessed Can and Wall Pack Fixtures. This lamp is great for hotels, hospitals, and office settings. It has a universal G24U base (fits G24q-1, G24q-2 & G24q-3) and can be installed both horizontally and vertically.