feildgrow247
New Member
400w MH veg!
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So the cmh bulb really has a big difference in heat compared to hps bulbs?I'm kinda in that category. I have a "Large Convertible Hood" by control wizards. It's 24"x24" but I'm running 2 - 400w CHM bulbs in it over a 4'x4' area.
If you have a good hood that disperses light well with a 1000w then it will show the same caricaturists with a 400w. If using a 400w hps ballast I'd highly recommend using CMH bulbs they are better in veg and better in flower. If you've read 1/2 the pages in this thread you've seen this link but here it is again http://advancedtechlighting.com/cdmed18.htm with this bulb you can leave it open no venting (heat is much lower) My bulbs are less than 12" from the canopy with no heat stress.
I'm sure a single 400 will run a 3x2 screen, your hood shape and light dispersion pattern will make the most difference in a rectangular pattern of your space
Looking good bro.. Yeah I got to grab a cmh bulb..Hello friends. I have a 400w CMH in a GL80. 4 plant scrog at the moment, 4 weeks into flower. Big up to Philips.
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Props on the grow Illumination, so what CMH bulb are you using? I'm about to embark on a small 400W closet grow and based on the research Ive done the Philips MasterColor CMH Retro White seem to be the best. I also hear you get better results if you throw in a HPS with the CMH, supposedly a 600W HPS and a 400W CMH produces INCREDIBLE Results.CMH IS DA BOMB!!!
Ing good bro.. Bagseed huh came out good.Just taken yesterday almost 10 wks into flower, and only 16" tall. This was bag seed by the way, and also my first indoor grow.
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No u cannot put a cmh bulb in a electronic. Allast.. I mean u could buy its not recommends and u might destroy the bulb. Cmh is a big difference from my. With cmh you get almost every spectrum u need to when mh is just for veg with white and blue spectrumcan you use CMH in a electronic ballast? and is it much different from MH?
Looking nice and bushy.6 weeks into veg with a 400w HPS adjust-a-wing reflector. G13 Labs Pineapple Express. Topped and LST'd for 5 weeks. Flowering in 5 days.
Whacha think?
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