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Ok I'm.running a.4x4x 6 1/2 tent .I have 144wx4 true power draw less I've tryed to.run a.600w hps at the same time . First the heat was unmanageable even with the aircooled tube dimmed all. The way down to 50% and a 6 inch fan going full out it almost cooked my crop.
Next my ledsare.a.full.spectrum and with the hps all on at.once I had bleaching bad yes to much light is to much light .
Now let's say you run your led for most of your light cycle I would let that Hps on for the noon time.of the light cycle for the hour or two to.stimulate the natural light cycle ......
But I would just run my leds seeing that I'm a cheep farmer and my goal is to produce the kindest bugs on a Mexican bud budget .