This comment is a little misleading hps bulbs have been modified for agriculture and have more blue than a street rated globe. Cmh works better because of spectrum imho and is probably more efficient than cheap leds. Also learning to grow under an hps takes some of the guess work out of it. I run leds and hps in flower, separate tents.
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600 watts of hps verses 600 real watts of led.
i realise the spectrum has been 'enhanced' for horticultural purposes but to me the spectrum graph still looks a mess in comparison to the par curve and the led spectrum wouldnt you say?