... Facctor: Above 90% 10) Brightness degradation: 3%-5%/1year 11) Operating lifespan: 50, 000hours 12) Operation Environment: -40 ~ 50 degrees celsius 13) ... products including LED tube(T8, T10, T5), LED panel light(300*300*12; 600*600; 1200*300; 600*1200mm), LED spot ... E26/B22/G24, Dimmable light , Solar light series), LED downlights, LED street light, LED Flood light , LED tunnel light and so onWe would ...