Specifications:- Overall Dimension(Dia.xH): 8 11/16"" x 13/16"" (22 x 2 cm)- Fits Ceiling Cut-out Dia: 8 1/16"" (20.5 cm)- Voltage: 110 to 265 V- Power: 18 W- Cri: 85+- Luminous Flux: 1440 lm- Color Temperature: 3000 to 3500 K, 4000 to 4500 K, 6000 to 6500 K- Led Lifespan: 50,000 hrs- Material: Aluminum, Acrylic- Net Weight: 1.32 Lbs (0.6 kg). Package Contents:- 6x Led Ceiling Lights- 12x Spring Clips- 1x Manual. Notice: - Please note that the thickness of the light is 13/16'' and make sure the wall thickness is within the range to install ceiling lights.