hetfield_08
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How many would it take to grow 6 or so plants, and about how many watts per bulb? Thanks for any answers.
hetfield_08 said:How many would it take to grow 6 or so plants, and about how many watts per bulb? Thanks for any answers.
did you really mean 20 bucks or 200??slowmo77 said:since you can buy 150 HPS for 20$ ready to go it doesn't make sense to use cfls anymore..
yuo can use cfls with good results, like THG said let us know how big your grow area is and we can help you figure out how many lights you need.. good luck
well i don't have much room, maybe a 7x7x7 area right nowThe Hemp Goddess said:When you are trying to figure out how much light you need, you have to tell us how many square feet you are going to have. Lighting has nothing to do with the number of plants you are growing and everything to do with lumens per sq ft. So, without knowing how big your space it, we can tell you that you need at least 3000 lumens per sq ft for vegging and 5000 lumens per sq ft for flowering.
I would encourage you to check out some lower wattage HPS.
hetfield_08 said:well i don't have much room, maybe a 7x7x7 area right now
gettinggray1964 said:They Dont All Have To Be 42 Watts, You Want A Good Mix Of Colors, Daylight, Cool White, Soft White, The First 2 Grows That I Have Done Was With Cfls, The Pic I Got In The Bpoym Contest Was Grown Under Cfls, It Was Over 7 Foot Tall In A 6 Foot Tent, I Had 2 Sativas And One Bag Seed Plant That Was 24 Inches Tall At Harvest.... All Under Cfls In The Same Grow............................ I Used 4 42 Watters And 30 Something 26 Watters.... TheY Work And Work Well...
Hahaha did he really just say 34 bulbs??? That's insane, and I'd agree with you. The 1000 watt HPS would probably have better light output than all 34 bulbs combined.Growdude said:Thats almost 1000 watts in CFL's you would be much better off with a 1000 watt HPS.
The extra wattage is almost ALL given off as HEAT.TommyBres said:Well, I went out and grabbed some info to support my opinion, without facts we have no debate.
45 watt GE CFL claims 2900 lumens, and it's at the higher end of all 45W CFL's I looked at.
An average, run of the mill 600W HPS bulb puts out 90,000-100,000 lumens of light.
So yes, you'd need at least 31 bulbs to have the same light output.
31 x 45 = 1,395 Watts
31 bulbs, at $13.95 apiece cost you $432.45 for supplies. Most likely bought over a period of time, but that's what the bulbs total. So here's the deal:
Pay $300 (roughly) up front, get 90000-100000 lumens of light, and pay for 600W of electricity during use... OR... Pay $432.45 over time, get 90,000 lumens of light, and pay for 1,395 watts of electricity. It seems simple to me.
Edit: ALSO, there's only 1 bulb to replace in the HPS system, and you can get a pack of 8 600W HPS bulbs that give off 90,000 lumens of light for 55 Australian dollars ($44 USD). That's $5.50 a bulb. They will burn out more often than the CFL's, but with the low cost of replacement and the fact that it uses less than half of the electricity, isn't it worth it?
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