Without LGP, never turn yellow Isolated driver, PF>0.9, THD≤15 % Super bright SMD2835 LEDs, LM80 rated Ra>80 Lumen output: 130LM/W IP Rating: IP40 Operating temperature: -20°C to 50°C AC120-277V or AC120-347V, 0-10V dimmable Non-flicker, no dark spot, protect your eyes Ideal replacement for traditional troffer with over 80% energy saving