For nearly 40 years, indoor horticultural lighting has changed very little: We’ve continued to use the same high-intensity discharge (HID) lamps with high-pressure sodium (HPS) or metal-halide (MH) ...
More than 105 million high-intensity discharge (HID) lamps, ranging from 20W to 2,000W in size, are now in use in a broad range of interior and exterior applications in the United States. HID lighting ...
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