Recessed LED down light,10W/15W/20W,6 inches hole,LED multi-chips integrated emitter,CRI>85.Dimmable available. ... any harm. No mercury and other pollution elements, environmental protection.6. Universal standardStandard size of diameter rate of cutting hole 2 ... '', 2.5'', 3'', 4'', 6'', 8'' can replace the traditional down light directly, unnecessary to ...