DIMMABLE: Dimming capabilities (10%-100%) which fit any mood or decor. OREiN sleek disk LED recessed disk lights provides CRI90+ for true color rendering, ideal applications include bedroom, kitchen, living areas, and offices. Compatible dimmers list on product description. DUAL INSTALLATION: These lights can be installed into 5 or 6 inch Recessed Can, or any 2.75, 3.5, or 4 inch Junction Box. Accessories for both installation are contained in the package. Our pictures and video show the detailed installation progress which only needs 3 steps. PARAMETER: LED ceiling lights is 120 Voltage, comply with US voltage requirement. 15 watt, provide 1050lm brightness which equals to 120W halogen lamp, energy save more than 80%.