Hey guys I'm going to buy a hps in the next couple days. I have a smaller flowering room (10 sgft). I have a fan that can run at 140cfm which could fully replace the air in there every 30seconds. It has a 6" output on it and I have 2 4" fresh air lines coming in so I think I can handle the heat of either light. With the 1000 I get 100watts per sgft and 14000 lumens per sgft. With the 600 I get 60watts per sgft and 9100 lumens. My question is, is the 1000 to much and is it worth the extra cost of running it. Thanks guys

I would like to know this as well

I'm not sure I run a 400. I just have a question that may go along with. Though we all know the 600 is the most efficient light with the lumen count, etc..I seem to hear about a whole lot more problems with the 600w than with 1,000w. Correct me if I'm wrong please.

so if yours is 3x3 a 600 should be perfect. I have 3 x 1000 now. 2 in the flower room 6' x 8' and the veg is 5'x5'. When i only had 1 in the flower and 1 in the veg, i used a 140cfm GrowBright "canfan" to cool both hoods. Worked good too. Now my 4" 140 cools the hood in the veg room and i have a 6" 420cfm cooling the 2 in the flower room. Now its cooling and exhausting extra nice. Didnt hear of any problems when researching lighting with the 600's, but wasnt really looking for them.

I had heard that the lumatek 600's weren't doing as well as the 400 and 1000's. But back to yip yap..

"Hey guys I'm going to buy a hps in the next couple days. I have a smaller flowering room (10 sgft). I have a fan that can run at 140cfm which could fully replace the air in there every 30seconds. It has a 6" output on it and I have 2 4" fresh air lines coming in so I think I can handle the heat of either light. With the 1000 I get 100watts per sgft and 14000 lumens per sgft. With the 600 I get 60watts per sgft and 9100 lumens. My question is, is the 1000 to much and is it worth the extra cost of running it. Thanks guys "

get this cant go bad

http://cgi.ebay.com/400-watt-SWITCHA...3%3A1|294%3A50

thanks guys. I thought I wouldn't have a problem with heat if I get the 1000 but glad to hear you did this with no problem. My flowering room is 2.5x4. I guess the real question is will the 1000 just be overkill. It's about a 60% increase in power consuption and lumen output over the 600 but will it yeild anywhere even close to 60% more bud. If not then it's not worth the extra lumens.
Thanks guys

as far as efficiency 600w and 1000w are the same... they are the most efficient lights you can get (lumens per $ wise)...

that being said, if you can handle the heat from the 1K - get it, otherwise you'll end up with a 600 and a 1K

i have 2 1KW lights in my garden which is about 3' x 7' with a sloped ceiling averaging about 6.5'... you will have to get vented hoods for either bulb tho.

Thanks bloodshot yea my flowering room is pretty much exactly half of your room. Do you feel that your yields are that much better running 1000s then if you had 2-600s. I am definatly getting an online cooling system with what ever light I get.

i went from a single 400 to a 1K and a 400 to 2 1Ks...

all i can say is the difference between 400 and 1K is NIGHT and DAY...

I skipped the whole 600 phase because i had a 1K and a 400 in the same room and i knew the 6 would be closer to the 4 than the 1K...

i could use 2 600s, but i don't think i would get the yield...