... with PWM.7. Power equivalent to 1/20 of the halogen spot light8. Power equivalent to 1/3 of the energy ... LED can reach 680Lm / W , it is 85 times of halogen spot light (8Lm / W), the Luminous Flux of our products ... reach 80-90Lm / W, can saving 90% energy than the halogen spot light, compact with energy saving light, it can save ...