Material: Metal Dimmer brand:Leviton一IP710-LFZ Lutron一NTSTV Super Bright SMD2835 LEDs, LM80 rated Ra>80 IP Rating:IP40, Operating temperature: -20°C to 50°C Lumen output:135LM/W PF>0.9, THD≤20 % AC120-277V&AC120-347 Strobe less than 30%, in line with T-24