HIGHly recommend the CMH, has that nice warm glow the girlies seem to love. Seems to add a degree of extra frostieness imho.
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I'm pretty sure I have the same 315 sunsystem CMH that
@Gentlemancorpse has. I run mine between a 480 watt qb light, and a 260 watt qb on the other side, currently covering a 4 x 6 area in a 4x8.5 room.
Does pretty dang well for me, I keep em about 2 ft or a bit more off canopy, and the room runs about 90 during the summer days.
This is an older pic where I had a 480 watt cob light in there too.
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Rooms been changed up since then, but the CMH is still kept center of room so everyone gets some of that warm happy glow. ???