... -100W 1.Professional manufacturer 2.NO Flicker,No glare High lumen efficiency garden lamp RY506 15W-100W Product information:1.Operation ... . Excellent color rending index: CRI>80(Ra)4. High lumen efficiency: 80Lm/W, constant light flux, lumen maintenance rate after 2000 hours>95% 5 ... .Difference between low frequency and hign frequency induction lamp: High lumen efficiency garden lamp RY506 15W-100W