Using PC&PBT plastic shell, fire-ressistant and heat-resistant, adopt high quality sparse soil tricolor fluorescent tube, 8000 hours lifespan, saves 80% energy than the incandescent bulb. The luminous efficiency is above 60lm/w. The working frequency is above 50KHz, no flash, soft light, protects eyesight; color rendering index is high up to 85, comfortable for eyes, wide voltage ranges from 170V to 250V, safty for usage. It's widely used in households, restaurants, offices, stores and other public places.