Mars Hydro SP 3000 Full Spectrum 300W High Intensity LED Grow LightMars Hydro SP 3000, Features the SP series' consistent high light penetration and heat dissipation performance and optimized spectrum, ideal for 2x4 growing and high PPFD needed plants. Enhanced waterproof capabilities allow it to perform excellently in high humidity environments. The new SP 3000 enables you to achieve higher yields at a lower cost. Wattage 300W Coverage 2x4 ft Featuring a thick aluminum passive heat sink and densely arranged chips,