LEDwholesalers 2506RD Red 90 x 1 Watt LED High Power Round Grow Light 90 x 1 Watt all Precision red 660 nm LEDs for flowering Energy-saving: emitting light fully absorbed by plant, much efficiency compared to HID grow light to produce the same result. 95% lights of LEDs can be absorbed by plants, but only 10% by HPS or MHS Reduce grow room temperature but 15 degrees compare to HPS or MHS high power LED estimate to last 50,000 hours.