SMD LED Panel Lighting 1.AC85-265V/50-60Hz ... luminous flux1440lmLight efficacy80lm/wBeam angle140 Degree.Rated lamp life time≥50,000 HoursLamp power factor ... cycles before premature lamp failure≥1,000,000 Times (5,000 Times in Lab).LED Panel Light Efficiency ... LED light factory, specialized in LED street light, LED wall washer, LED flood light, underground light, LED Tube & bulbs, LED Panel light, LED ...