Fluro Heat vs Hps Heat

Swa_Swa · #1 (**permalink**) 06-13-2007, 07:28 AM

I'm wondering how much heat 1 400 watt hps puts off compared to any amount of fluros lets say 42 watt compact? Would 400 watts of fluros = a 400 watt hps?

kinky19777 · #2 (**permalink**) 06-13-2007, 07:45 AM

Id say 400watts worth of fluros would create more heat than 1 400watt HID...because I have 4 sets -8foot high output fluro's so thats 440 watts of fluro in the roof of my garage and it heats it up in the winter and I dont think a 400 watt HID would do it that much.

Swa_Swa · #3 (**permalink**) 06-13-2007, 07:54 AM

Cool the reason why I'm wondering is because I'm upgrading to a hps. During the day I leave my closet open but I'm gone on the weekends and when I get back it gets up to 90-100 (4 2 foot tubes and 4 42 watt compact fluros) It's usually between 80-85 with the doors open (Yes I know not the best). I'm thinking about getting a cool tube set up but I don't want to spend the money if I don't have to.

ISTANDALONE · #4 (**permalink**) 06-13-2007, 04:56 PM

dudes, a whole ROOM of floros (tubes or cfl's) won't even come close to the heat an hid will produce. my 400w bulb gets to 400f. 42w cfl might get to 150f. so even if you have say 5 42w cfl's you wouldn't take the 150f and multiply by five. it doesn't work that way. a cab full of cfl's w/o vents would be in the high 90's. a cab with a 400 hid w/o vents would be in the 120's at least. so if you growing with cfl's your intake/exhaust doesn't need to push nearly as much as it would with hid. your cool-tube plans are sound. those work wonders for high wattages in small places.

sth · #5 (**permalink**) 06-13-2007, 08:18 PM

Quote:

Originally Posted by ISTANDALONE

dudes, a whole ROOM of floros (tubes or cfl's) won't even come close to the heat an hid will produce. my 400w bulb gets to 400f. 42w cfl might get to 150f. so even if you have say 5 42w cfl's you wouldn't take the 150f and multiply by five. it doesn't work that way. a cab full of cfl's w/o vents would be in the high 90's. a cab with a 400 hid w/o vents would be in the 120's at least. so if you growing with cfl's your intake/exhaust doesn't need to push nearly as much as it would with hid. your cool-tube plans are sound. those work wonders for high wattages in small places.

Well I dunno about it getting to 120degrees in my grow room, it'd have to be really small in there :P. But istandalone is right, CFLs will produce much less heat then an HPS. You'll be able to have the lights closer to the leaves with CFLs because of this. However, the HPS will still be more powerful.

kinky19777 · #6 (**permalink**) 06-14-2007, 12:44 AM

You may be right...Im just going by 8foot tubes in my garage I see everyday. It does make more sense that a HID would make more heat but I just cant see a 400 watt HID makin more heat than the amount my 440 watts worth of tubes are. I guess anything is possible. I know my 1000 w HID setup bakes like a damn oven I can get 120-140 degree temps quick with it. I never used a 400 watt before but my friend has I will ask and see.

head4life · #7 (**permalink**) 06-14-2007, 12:59 AM

hps/hid without bringing a good amount of air in and out =pizza oven

go with tube fluoro fixtures there cooler then cfl put them on the walls and some 42w cfls overhead

best of luck on the grow

-h4l

DrGAnja20 · #8 (**permalink**) 06-14-2007, 01:17 AM

Even though CFLs work there good for scrogs and 1 too 2 plant setups' But if you want results on your grow just get a 250w hps, thats what I got and my room stays around 34 C and thats not bad compare to high 30's low 40's. As long as you got a fan and good ventaliation, plants love the heat. Its summer now and its always going to be hot so be perpared.

Swa_Swa · #9 (**permalink**) 06-14-2007, 06:53 AM

I don't think any amount of fluros can compare to 1 hps light lol. You could have 100 lights on one plant and probably wouldn't matter.

davoplot · #10 (**permalink**) 06-14-2007, 07:02 AM

Flourescents are usually used for mothering of plants or cloning,sprouting,
and are known for their low heat(lower 20's/with vent.).
A HPS is deffinately has higher heat(higher 20's,lower 30's,higher30's, to
even 40's).High heat is bad for buds.

A good temperature for MJ is 26C.Thats perfect.
1000Watt HPS can produce way more heat, and can even be kept at 26C
with propper ventilation, and it would help if you have a cooled light.

O yea..if you had 400Watts of Florescent lights, it wouldnt be the same as a 400Watt HPS
HPS provide allot ore Lumens.

Swa_Swa · #11 (**permalink**) 06-14-2007, 07:58 AM

Thanks for all of the responses!

I'm pretty sure I will need a cool tube from what I have heard in my situation.

outofpublicside · #12 (**permalink**) 06-14-2007, 08:11 AM

cfl's has 65 lumen/watt ratio, which is poor compared to hid ligths, like hps, it has even more lumen/watt ratio, around 125+. currently hps(except leds) lights has the highest gain.
if you want to replace the hps with cfls by wattage or even lumen output, will end up in half amount of light or twice as much heat. cfls are good, but hps is the best. low temperature is good for buds, but more light even better.

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#1 (permalink) 06-13-2007, 07:28 AM
Swa_Swa Banned for life! Join Date: Mar 2007 Posts: 779	Fluro Heat vs Hps Heat I'm wondering how much heat 1 400 watt hps puts off compared to any amount of fluros lets say 42 watt compact? Would 400 watts of fluros = a 400 watt hps? __________________ When I started caring about what people thought about me I started to lose my mind.

#2 (permalink) 06-13-2007, 07:45 AM
kinky19777 Banned Join Date: May 2007 Posts: 506	Id say 400watts worth of fluros would create more heat than 1 400watt HID...because I have 4 sets -8foot high output fluro's so thats 440 watts of fluro in the roof of my garage and it heats it up in the winter and I dont think a 400 watt HID would do it that much. Last edited by kinky19777; 06-13-2007 at 07:48 AM.

#3 (permalink) 06-13-2007, 07:54 AM
Swa_Swa Banned for life! Join Date: Mar 2007 Posts: 779	Cool the reason why I'm wondering is because I'm upgrading to a hps. During the day I leave my closet open but I'm gone on the weekends and when I get back it gets up to 90-100 (4 2 foot tubes and 4 42 watt compact fluros) It's usually between 80-85 with the doors open (Yes I know not the best). I'm thinking about getting a cool tube set up but I don't want to spend the money if I don't have to. __________________ When I started caring about what people thought about me I started to lose my mind.

#4 (permalink) 06-13-2007, 04:56 PM
ISTANDALONE Banned Join Date: Jun 2006 Location: beautiful southern vermont Posts: 2,395	dudes, a whole ROOM of floros (tubes or cfl's) won't even come close to the heat an hid will produce. my 400w bulb gets to 400f. 42w cfl might get to 150f. so even if you have say 5 42w cfl's you wouldn't take the 150f and multiply by five. it doesn't work that way. a cab full of cfl's w/o vents would be in the high 90's. a cab with a 400 hid w/o vents would be in the 120's at least. so if you growing with cfl's your intake/exhaust doesn't need to push nearly as much as it would with hid. your cool-tube plans are sound. those work wonders for high wattages in small places.

#6 (permalink) 06-14-2007, 12:44 AM
kinky19777 Banned Join Date: May 2007 Posts: 506	You may be right...Im just going by 8foot tubes in my garage I see everyday. It does make more sense that a HID would make more heat but I just cant see a 400 watt HID makin more heat than the amount my 440 watts worth of tubes are. I guess anything is possible. I know my 1000 w HID setup bakes like a damn oven I can get 120-140 degree temps quick with it. I never used a 400 watt before but my friend has I will ask and see.

#7 (permalink) 06-14-2007, 12:59 AM
head4life Registered User Join Date: Dec 2006 Posts: 2,688	hps/hid without bringing a good amount of air in and out =pizza oven go with tube fluoro fixtures there cooler then cfl put them on the walls and some 42w cfls overhead best of luck on the grow -h4l

#8 (permalink) 06-14-2007, 01:17 AM
DrGAnja20 HiGhliFe Join Date: Apr 2007 Location: Ohio Posts: 37	Hps + summer! Even though CFLs work there good for scrogs and 1 too 2 plant setups' But if you want results on your grow just get a 250w hps, thats what I got and my room stays around 34 C and thats not bad compare to high 30's low 40's. As long as you got a fan and good ventaliation, plants love the heat. Its summer now and its always going to be hot so be perpared.

#9 (permalink) 06-14-2007, 06:53 AM
Swa_Swa Banned for life! Join Date: Mar 2007 Posts: 779	I don't think any amount of fluros can compare to 1 hps light lol. You could have 100 lights on one plant and probably wouldn't matter. __________________ When I started caring about what people thought about me I started to lose my mind.

#10 (permalink) 06-14-2007, 07:02 AM
davoplot $$$$ Join Date: May 2007 Location: BC,CANADA Posts: 577	Flourescents are usually used for mothering of plants or cloning,sprouting, and are known for their low heat(lower 20's/with vent.). A HPS is deffinately has higher heat(higher 20's,lower 30's,higher30's, to even 40's).High heat is bad for buds. A good temperature for MJ is 26C.Thats perfect. 1000Watt HPS can produce way more heat, and can even be kept at 26C with propper ventilation, and it would help if you have a cooled light. O yea..if you had 400Watts of Florescent lights, it wouldnt be the same as a 400Watt HPS HPS provide allot ore Lumens. __________________ "He who has a 'why' to live, can bare with almost any 'how'" Last edited by davoplot; 06-14-2007 at 08:08 AM. Reason: Forgot to mention something

#11 (permalink) 06-14-2007, 07:58 AM
Swa_Swa Banned for life! Join Date: Mar 2007 Posts: 779	Thanks for all of the responses! I'm pretty sure I will need a cool tube from what I have heard in my situation. __________________ When I started caring about what people thought about me I started to lose my mind.

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#12 (permalink) 06-14-2007, 08:11 AM
outofpublicside Registered User Join Date: May 2007 Posts: 3	cfl's has 65 lumen/watt ratio, which is poor compared to hid ligths, like hps, it has even more lumen/watt ratio, around 125+. currently hps(except leds) lights has the highest gain. if you want to replace the hps with cfls by wattage or even lumen output, will end up in half amount of light or twice as much heat. cfls are good, but hps is the best. low temperature is good for buds, but more light even better.