Do you really need inline fan to cool these lights. large growroom in basement 8-16 and 8 high. Can i just pull cool air from bottom exhaust otherside
164439
If your hood is open and not a tube you could do that BUT cooling the light allies you to keep light at a closer level to plants, more lumens equals less stretch and more growth, also add a carbon filter or it will reek
164440
fan is to exhaust heat from bulb and with duct directed. light can run without fan. bulb last longer supposedly
164441
It depends on how many lights and how cool your area is but yes you could run them with no exhaust example a basement that stayed in between 50-60 degrees normally with 2-4 lights would bring it to the perfect grow temp withoutexaust depending on the size of the basement. Are you going to have dehumidifiers? Heating as well?
164442
I am not using a fan right now. It is winter here and the lights don't seem to run that hot. I have them about12 in from the plants.
1100218
Have had 2 fans for 15 months now and never had any problem with light nor fan. Very satisfied with these fans. Sorry, cannot help you with your problem.
2143351
i have the big 120 mm fan (extra - like $20 as I recall), and it comes with the two 80mm fans in front you could replace with LED fans if you want. I think you can mount a couple in back too. So I'd say yes, but not sure you need them, as I have no issues with heat
1747455
I have the dual fans (4000 cfm) ... using to cool a 355 SBC they are quality units, work fine, however, they draw a lot of juice and are noise. I had to go to a 140 amp. alternator to carry the load. I'm going to put seperate switches so I can run 1 fan on cool days and 2 only when needed to drop the load and noise. engine mounted in a '74 260Z roadster conversion with tight engine bay so cooling, even with an alum. rad. and ceramic coated headers a task. Fans did the trick.
1372851
I would just buy a cool tube light and call it good. Its a bit too narrow to let an HID light free hang in there with no cool tube it will get hot quick anyway you'll at least a 6" inline fan for proper venting even with a cooltube.
163265
I just bought my kit a few weeks ago. according to the Truelumen website you don't need a fan. These lights are not as hot as the other bulbs.
1695318
And lol dont listen to the guy below me. I ran these in cloner tents with 99% rh and that was over 6 months ago. Moisture isnt an issue for these fans its the heat. The oil in the bearing will burn up if the air going in is over 105. Just add 3in1 oil to the base of the fan shaft while its running, with the fans blades off of course. Take care of them and they will take care of you.
1473073
Im not sure. Ive recently switched to led for vegg. The 8 bulb fixture raised the temps almost 15 degrees and sucked out every bit of moisture. If u have a very large space its not a problem. It was for me tho.
1908099
Yes.. I have an open porch with skylights with two fans up high. On warm days they circulate the air great! I also have wall mounted heaters, and so on cold days I turn the heaters on and the fans blow the warm air down! I've had them in place for a year now and they continue to work great.
522306
I do operate (4) of these lights in my ceiling fan and have no issues. The room is a lot brighter than the Compact Flourescent bulbs they replaced. I have ordered over (30) bulbs, some do give a little buzz most don't. Im still pleased with the purchases.Randy
702998
U prob need a nice fan just to blow under ur bulb. Kinda make ur own air cooled system.
1372853
with how limited the space is, maybe. As long as you took good care for heat. I think you could. But if heat is a problem then no. With my inline fan and led hanging. And one medium plant I'm at a solid 76 Degrees. It's got the vent holes for easy ventilation so no reason why you couldn't try
1058097
It would depend on why you were cooling the air. To cool an energy source (light source) it would be on the air intake side (whether external environment intake or recirculating closed environment). If you wished to cool the air exiting (presumably to prevent heat build-up in an extra room?) it would be placed inline on the environments exhaust port, presumably with a scrubber to follow.
187674
Yes, but I believe you can put a bigger fan in front instead of the 2 stock 120mm fans. I kept those because they were already wired with an on/off switch for the light.
716219
You can, but its not gonna cool the 3rd bulb much as the heat is gathering up higher as air goes through tube.I would at least run a 700cfm to that setup, and that might not be enough. I havent even run more than 2 lights at once on a 700, and the exhaust air was over 95*
272433
To cool the lights u hook it to the intake to the lights however u have it ran. just make sure The air is hiting the cooler before the light
2001692
You will most definitely need an actual centrifugal inline fan for this. Also, if you daisy chain tubes with one fan I recommend a booster for the additional heat load.