1. Housing: Aluminium material with white outer surface, good heat conduction. 2.LED Source : 6pcs 1W high power LED from Nichia, 80-90LM per LED, white and warm white color are available. 3Reflector: white color,beaming angle:90°. 4.Panel: Made from transparent plexiglass. Light transmittance can be over 93%. 5.Input Voltage:90VAC-256VAC. High efficient and wide voltage constant current driver keeps stable current of the product. 6.Working Temperature: -20℃~ +40℃ 7.Life time:40,000 hours (brightness maintenance rate 70%) 8.Color temperature:5000K(white),2800K(warm white) 9.Color Rendering Index : 78ra(5000K),84ra(2800K) 10.Weight:550g 11.Package: White Box 12.This product works as an replacement of traditional Down Light. It can be widely used for hotel, restaurant ,commercial & home lighting etc.