... ) Power Facctor: Above 90% 10) Brightness degradation: 3%-5%/1year 11) Operating lifespan: 50, 000hours 12) Operation Environment: -40 ~ 50 degrees ... *1200mm), LED spot light(GU10, MR16,AR111, PAR series), LED bulb(E27/E26/B22/G24, Dimmable light , Solar light series), LED downlights, LED street light, LED Flood light , LED tunnel light and ...