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by jmpe
4586 days ago
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The hps operates at higher power and comes in models that scatter the light in all directions (so you need a reflector). The spectrum is constrained (as is for led) but you'll find it difficult to change it. All those lumens are in an unfavorable part of the spectrum. LED is much better at fooling our eyes, their spectrum can be tuned to sit close to the receptiveness maxima for our eyes. |
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