... ) 10 years of life (6 hours per day)2) unique optical design, no light pollution, glare-free, uniform light field, no ... strobe3) above 85% lamp efficiency4) above 80% power efficiency, power factor greater than 0 ... 90, good color performance, close to natural light6) 3000K-7000K wide range color temperature7) green, lead-free, no UV radiation, no ...