just checked my 4x4x8 enclosed grow room - 78 degrees lights on, with a 250 cfm exhaust, just using a 5200 btu window ac in another room for my 750 sq ft house

that said, an intense CFL is going to get just as hot or hotter than an equivalent wattage hid. without the wattage/intensity your plants suffer.

It is not the same at all to have 4-27 watt cfls vs 1 100 watt cfl - like I said, forget about "lumens".

yea see the problem with that is i have very little space.. i plan on a small grow 3'hx2x2 room just a few plants with scrog 2-4 so i dont wanna light my plants on fire....so hid not really an option...

hi,you need to get that light about 2" away from that plant, and get 2 moor bulbs on it. and why is that plant growing at the side of the pot? and whot is that growing in that pot with yor plant? and try and get them bulbs on ther sides. good luck!!

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HOW TO GROW 10 POUND OF SKUNK IN A PC CASE IN 80 DAYS

I see, then I'd say 2 plants, and 2 65 Watt - Full Spectrum - High Definition - 6500 Kelvin - Spring Spiral Compact Fluorescent - 65W/SPRING/65K Light Bulb if you are worried about heat, but if you are brave or can ventilate some, you'd fare better with the 85 or 100s, 5000-6500k. You can get reflectors for $6 at walmart in the worklights section, but with 3 feet height you'd be better off buying sockets and mounting horizontally on your roof (actually horizontal is better period)

just realize my 100watt flourex security light created 92degree conditions at plant height, with no exhaust but tent open, same ac, +5 degrees outside

actually in 3 foot you should look into led light and forget cfl. read Blue vs. Red Action Spectrum: Scientific answers to the age old question - Cannabis-World, then look at the 50watt led grow here on rollitup

led = cooler and you won't need reflectors, just reflective walls. supposedly heat is not an issue at all with led. just match the ratios to the blue vs red article + add 2,27 watt 6500k cfls for full spectrum. then document it in your journal, cause the results will be awesome

well thats intresting but ummm will led light work ? is it ment to be used with other lights... i dont really have room for 10 diffrent bulbs..... and ive just looked into led lights a bit and ive seen that led lights within 6'' of the plant can cause abnormal behavoir
( strage growth/curling of leaf's/ led sHock) and how many lights would i need ? for a grow the lumens of these lights are very low and so is the wattage.... so would i need like 40 of them ? or doesnt it matter with leds.... ive never been introduced to this idea and i will be looking into it .....

OK I am just going to speculate here... this is based on my intuition and knowledge of spectrum and photosynthesis, not my personal experience with LED ... anyway first, my motivation for this is I want to see how well this works from someone with more than half a brain and I just sunk all the money I can for a while on mh.

So first speculation, about LED shock. Checking for that query in google, and you can see how it originated. But also, plants need more than just red and blue. True thats what they mostly want, but see the absorption spectrum at: PHOTOSYNTHESIS

From that I can hypothesize that the original guy who got "led shock" either had the red/blue ratio off or just didn't include any yellow/green spectrum at all.

That's why I suggested adding two-four 27 watt or one-two 42 watt cfls for full spectrum, little heat. Then for example, 3 of the blue 3watt led from hidhut, and two reds. Make your roof as an array of sockets spaced 6 inches apart, which will give you 12-16 sockets. You start out using 6 of them, but will be able to "upgrade" your lights at anytime by buying 1.6:1 blue/red led. If you need more than the roof allows, you can make socket arrays on the walls. My point is, you could never do that with cfls, as once you start running ~400watts of cfls it is going to be just as hot as one ~400w mh. The socket array will be super cheap to build, if you are worried about the wiring, it is really easy, I can teach you in less than a paragraph.

Sorry I can't be more concrete, I just have a really strong feeling that this would work better than perfect for your space. Plus your journal will give me something to show my gf to justify wrapping my walls in LEDs I will email Justin @ hidhut in the morning and make sure he doesn't think I am talking out of my ass about the LEDs

but none of the watts are put into excessive green/yellow wavelength spikes like a cfl. Thing is, if the LEDs aren't going to work, you will be venting excess heat from green/yellow spectrum production, and will be getting very little intense blue/red wavelengths = slow, lackluster, scorched growth. I tried an array of 8 daylight 27s before anything and was not impressed at all. And that was running 85 deg, in a 3x3 cabinet opened in the same room as the AC unit. Trust me, that is pretty hot considering.