Currently, a good percentage of the food we eat is grown in hothouses and is often supplemented with electric lighting to artificially extend flowering season. These supplemental lighting systems often consist of metal halide or high-pressure sodium, HID(high-intensity discharge) lamps, that are for the most part, are very inefficient supplying proper spectrum required for all stages of plant development.
While LED lighting has been around for almost a decade now, advancements in horticultural applications (growing different types of plants) is only now, with recent advancements (in output in lumen per watt, as well as availability of UV, IR and other LEDs in “non-lighting” spectrum), reached commercial viability.
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