Electrodeless Tunnel Lamp 200W with High Lumen Efficient 1.Model:RY302C ... 4.PF>0.99 Electrodeless Tunnel Lamp 200W with High Lumen EfficientProduct Model: RY302CApplied lamp Tube: Rectangular ... Excellent color rending index: CRI>80(Ra)4. High lumen efficiency: 80Lm/W, constant light flux, lumen ... CCC, UL, CE, FCC, SON, KETI approved) High Frequency Induction Lamps VS Low Frequency Induction Lamps: More ...