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    Room getting too hot

    my room is getting to 104 i have one fan and a 600 watt metal halide that uses a digital ballast. is it okay for me to run my ballast on 75% or even 50% i have herd it ruins the bulb but i have also herd to change the bulb when starting new crops i had i on 100% and it killed my seedlings at 17...
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