... : 480lm Warranty:2years Advantage: 1,High efficiency:90% of the electricity energy into visible light,ordinary incandescent lamp 80 ... interference, No buzzing noise9,No fluorescent flickering10,No hazard of mercury or lead entering the environment12,Maintenance free, easy ... existing fluorescent lamp;8.Along with the development of LED technology, the cost of led light would cut down, and replace ...