SANSI LED Grow Lights for Indoor Plants, 600W Full Spectrum Clip-on Gooseneck Grow Light with Ceramic Tech.,40W Power Plant Light with Optical Lens...

THE SECONDARY OPTICAL DESIGN: PPFD: 804 mol/s/@1ft. Through the lens for secondary scientific light distribution, improves light utilization, giving plants more supplementary light. Using only 40 watts of power, equivalent to 600W incandescent bulbs. Based on 18 hours per day usage, save up to 90 percent electricity, annual estimated cost 26.28 dollars. 360 DEGREES GOOSENECK AND FULL SPECTRUM: Making every plant covered by 360 degrees surrounding light, actualize a more ideal full life cycle full spectrum supplementary light program, covering the entire visible spectrum of 400nm-780nm, suitable for every cycle of plant growth, effectively promote plant growth, and improves crop yield and quality. Providing 4000K daylight, color rendering index Ra is close to 100, infinitely close to natural light. REPLACEABLE BULBS: Different from similar products on the market, the bulbs of this product can be replaced, which not only facilitates customers to replace broken bul