... color temperature 4. High luminous efficacy 5.Warranty: 3years Induction Self-ballasted Light Detail Description: Product Model:YUA ... spectral distribution and most is visible light, so the luminous efficacy is 20% higher than energy ... ballasts, such as highbay light, flood light, self-ballasted light, tunnel light, street light, gas station light, garden and landscape light, etc. Direct factory ...