Hang this single high-power grow lamp once and cross lighting off your list. It doesn’t matter what photosynthetic phase your plants are in — it delivers the exact light they need to fully fuel every growth stage from sprouting to harvest. Two hundred specially calibrated LEDs emit the near-UV wavelengths sensitive herbs require for peak resin production and disease fighting while infrared rays deliver energy deep into your canopy for fuller, healthier growth. Special lenses concentrate this light to prevent losses in intensity due to distance and bathe up to a 4' x 4' area in brilliant light that’s 50% more energizing than standard HPS fixtures. Optimal coverage area is 4' x 3' or 3' x 3' for maximum intensity. Full- and half-power controls effortlessly adjust output as needed, all without heat or energy waste. Constructed to last for 10 years of successful growing.