  This item is discontinued.
SolarMax HPS grow bulbs are designed with the grower in mind. As plants approach maturity they require less "Blue Light" and depend more upon radiation from the "Red" portion of the spectrum between 610 nm - 720 nm (see the chart below). The SolarMax Super HPS bulbs have been engineered to constantly deliver 10% more targeted "Red Light" energy to the maturing plant to promote aggressive flowering. SolarMax HPS bulbs are manufactured in Germany by an ISO certified factory with over 40 years experience in HPS and MH lamp technology, ensuring high quality and optimized performance. The reduced bulb size fits most grow lighting fixtures. Buy a complete 400 Watt HPS grow light system that includes everything you need including HPS bulb, ballast and reflector.
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