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| Forums > Marijuana Growing > Growroom Designs & Equipment > Growroom Lighting > Best 400mh bulb? | ||
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#1 |
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Member
Join Date: Jan 2010
Posts: 41
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Best 400mh bulb?
Obviously Hortilux blue. Next best, budget friendly? Not trying to spend $60 on a bulb for a fixture that was basically free. Came with a westinghouse bulb and I just know it's shit. Looking for something better and need asap cuz i think the westie is gonna blow soon.
What spectrum am I looking for to get nice bushy plants? Planning on vegging 2 weeks and flowering 4 plants in 5X5 tent. I need bushes, baby!
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"It's not how you play the game, it's if you win or lose." -Ozzy Last edited by its.always.420; 03-06-2018 at 01:38 AM.. |
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#2 |
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Member
Join Date: Mar 2009
Location: Potters field, USA
Posts: 78
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I use Genesis 400w MH. Check it out.
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#3 |
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Member
Join Date: Jun 2017
Posts: 324
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5x5 I would use more than 400 w for that area.sunmaster is a good bulb tho
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#4 | |
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Member
Join Date: Jan 2010
Posts: 41
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Quote:
Veg tent is 2x2x5. one or two veg at a time and perpetual harvest.Thanks for the suggestions guys! Wasn't looking to spend that much right now though, have dropped over $800 setting up in the last 2 weeks. Trying to make the tax return last as long as possible! I went ahead and ordered one of the cheapies on amazon, 4300k. My reading tells me it's a fuller spectrum than most 6500k. I'll spring for the horti blue in a few months.
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"It's not how you play the game, it's if you win or lose." -Ozzy |
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#5 | |
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I dig dirt
Join Date: Sep 2013
Location: in the hills
Posts: 2,633
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Quote:
your gonna need to veg a lot longer than 2 weeks if you want bushes...
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... Isn't Mother Nature grand ! |
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1 members found this post helpful. |
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#6 |
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Senior Member
Join Date: Jan 2013
Location: Denver CO
Posts: 4,949
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The first thing to understand is whether the ballast is probe or pulse start. Probe start ballasts have only a transformer & capacitor while pulse start ballasts also have an ignitor. Pulse start lamps will not fire on probe start ballasts.
That's in contrast to HPS ballasts which are all pulse start. This is an excellent lamp for veg- Philips 232595 cdm330/u/o/4k ea They're open fixture rated, universal burn & universal start. They put out as much light as 400w quartz MH lamps using less power & last basically twice as long. They're often available on ebay for less. |
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#7 |
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Senior Member
Join Date: Jan 2013
Location: Denver CO
Posts: 4,949
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#8 |
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Member
Join Date: Aug 2010
Location: Top Shelf
Posts: 907
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Mastercolor retrofit 400 cmh. Works on a magnetic HPS ballast.
They havent been made for a few years now, but there seems to be a fair number of them still kicking around being sold on ebay. Or was about 2 months ago when I last checked. |
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#9 | ||
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Member
Join Date: Jan 2010
Posts: 41
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If clones save you a month over seed, that puts me right on schedule.
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How long, from rooted clone? I'm an old closet grower so I always ended up overvegging. I want to cut one plant every 2 weeks, and need to stay under my 12 plant legal limit. Suggested schedule?
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"It's not how you play the game, it's if you win or lose." -Ozzy |
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#10 | |
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Senior Member
Join Date: Jan 2013
Location: Denver CO
Posts: 4,949
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Quote:
Be aware that the Hortilux blue & most other quartz MH lamps require enclosed fixtures for safety reasons- https://www.topbulb.com/hortilux-blu...lide-grow-lamp |
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