Lucalox PSL 600 Watt HPS grow bulbs from GE offers superb performance and reliability. Lucalox's spectral content ensures optimum growth rates, allowing shorter cultivation times with less expenditure on chemical fertilizers. Whether used as a constant growth source, or simply to extend day-length, the Lucalox 600 Watt HPS grow bulb can help you achieve high yields with complete control. This means more produce and a heavier crop, even in the middle of winter. The GE Lucalox 600W HPS lamp can satisfy the needs of even the most sophisticated and demanding growers.