LOWER RUNNING COSTS & HIGHER-QUALITY YIELDS: SPIDER FARMER LED Grow Lights utilize the latest in high yielding LEDs technology today-Samsung LM301B diodes, high Energy Efficiency with 2.7 umol/J, create the better canopy light penetration. SF1000 only consumes 100w, running 50% less power than the other 1500 QB lights(SMD LEDs) or Blurple lamps or HPS, and still was 50% more harvest. Veg footprint is 2.5 x 2.5 ft, Flowering footprint is 2 x 2 ft.