... ,250,300,400,500w. full spectrum replace 800-1000W HPS light color customized,good for plant photosynthesis grow lightType: YML-GC06A ... as the high-pressure sodium lamps, 3 times as LED's . 2: High light efficiency, the effective efficiency as large as 130 ... (can be customized 100-277V). Ensure constant power output of light source: can instant start without warm-up time, superior start ...