... 2.High lumen: 320lm 3.Lifespan: 30000~50000h 4.CE & RoHS Certific Advantages:1) High brightness, low electricity consumption and ... production,raw material check,Lights beads check,aluminum plate check,power supply check and the finished products 48 hours test.Warranty: ... ,raw material check,Lights beads check,aluminum plate check,power supply check and the finished products 48 hours test.Warranty: ...