Thread: Heat comparison LED UFO v.s. CFL

Hi, to start things off Ive read all the threads about using LEDs and if i had the choice i would run an hps. Unfortunately heat is a problem for my lil grow cab so no hps . I want to throw as many cfls as possible in my cab and after carbon filters and venting i have temp issues with anything over 7 23w cfls (161watts). My question is this... How does a 90w LED UFO compare heat wise to 90w from CFLs? I would like to have one 90w LED UFO with 3 23w cfls( 2 on the sides and 1 in the middle) totaling to 159w of power consumption all on 2 plants. How do you guys think the temps would be compared to 7 23w cfls? How do you think the quality and quantity would also compare? Comments from people with actual experience on these types of lighting please. Thanks

Originally Posted by Learninglots420

Free bump, I hope you find your answer, and post back here when you do . My grow cab project is still in the planning phase and if I can't obtain a cab that can house a HPS (which is likely) I'll be in your shoes as well. It is hard to find opinions on LEDs from people who have actually used them, and a number of LED journals i've seen are always supplemented at some point by a bunch of CFLs.

Can you post any pictures of your grow cab, and maybe let everyone know what your temperatures are capping out at?

Well i currently have 3 80mm 38cfm pc fans for the exhaust. For the intake i have 1 120mm 73cfm and 1 80mm 32cfm pc fans. Without the carbon filters and intake vent/light trap i was able to keep my temps at 68*F intake and 75*F exhaust with 2 80mm exhaust fans and 1 120mm intake fan. As soon as i threw the filters and intake vent on things got bad, so i attached extra fans. With the extra fans and just the intake vent on temps are 68*F intake and 76.5*F exhaust. Yesterday i tried using the carbon filters and the temps topped out around 81-83*F. Those temps are grow able but a little high in my opinion. This is because if the room temperature simply increases to 71*F now im seeing temps in the +85*F range. Here are some pics of the inside of my cab.

http://tinypic.com/r/2u97gnl/6 Outside

http://tinypic.com/r/1zoykwl/6 Inside

http://tinypic.com/r/15yay6u/6 Exhaust fans

http://tinypic.com/r/28lz4g6/6 Intake Fans

So i have been doing some more thinking, what are your guys thoughts about me buying two 14w led panels and placing them on the sides for supplemental lighting. Then i would be able to possibly reduce the number of cfls from 7 to 5. Let me know you guys think? Thanks