i’ll not buy another led until..
- Thread starter crimsonecho
- Start date
crimsonecho
Well-Known Member
they dont have to be as big as the ones used for cobs. just maybe like sort of fan shaped to catch the updraft between the bars. i mean boards are cool, very nice. spread the diodes over the boards and thats cool but if ones insists on a bar design why not utilize the empty space between the bars for a little bit better thermal management. doesnt have to bulky just spread out?
lusidghost
Well-Known Member
A ridiculous 24”-36”. My plants are currently about a foot beneath one of them, so I had to dim it way down. Now the plants on the outskirts are getting robbed.
Budzbuddha
Well-Known Member
Wow this topic went 14 pages deep …. 
Better make more kettle corn.
Better make more kettle corn.
crimsonecho
Well-Known Member
are you using them personally care to review the temps and stuff? i bet they run cool with heavy heatsinks on boards..
crimsonecho
Well-Known Member
sorry no outside food is allowed at the theatre, enjoy the show.Wow this topic went 14 pages deep ….
Better make more kettle corn.
crimsonecho
Well-Known Member
that is ridiculous really. are you sure you’re not gonna upgrade your lights?
lusidghost
Well-Known Member
What do you mean? I said I was going to upgrade them and even showed you the ones I was looking at.
crimsonecho
Well-Known Member
i must have misunderstood you, all cleared
i would love to get a review on those temps and stuff when you start running it
lusidghost
Well-Known Member
Ah, I see what caused the confusion. By "setup" I meant I won't have to change how the fans are blowing from the sides. The light that I'm looking at (GML Tarantula Vulcan) is 35" wide.i must have misunderstood you, all cleared
i would love to get a review on those temps and stuff when you start running it
crimsonecho
Well-Known Member
yeah when you said setup i thought you meant the light setup but i get it now. my head is like buzzing from lack of sleep excuse my lack of comprehension
lusidghost
Well-Known Member
Also, to be fair, I have gone through a tremendous amount of fans since I started growing. Probably around 30 if I had to guess. Big fans, clip-on fans, oscillating fans, oscillating grill fans, stationary fans, expensive fans, cheap fans, fair weather fans, lady with a fans, ect ect.
crimsonecho
Well-Known Member
wow all those fans!
have you used tower fans blowing from up top? after all this terrible thermal management talk i decided to hang my 2 tower fans horizontally from the top bars of the tent and then i did, it seems like they’re working but i just dont know how well they’ll work like that.
i once hanged a mid sized table top fan upside down from the top bars and it started to drip oil after a while and then stopped oscillating at one point etc. so i dont except these tower fans to oscillate but just blow air gently but i also dont wanna deal with any leakage from the motors and shit.
lusidghost
Well-Known Member
I heard they worked well like that. I've always used a rotating grill fan hanging horizontally between my lights to blow down on my plants. I will have to change that when I buy new lights. I may try the tower kind because they would probably fit.
hillbill
Well-Known Member
My Infrared reader broke so don’t really have temp. At 115 watts the heat sinks are warm, I can easily rest my hand on it. I have 2 Elevated 130w alongside a 135w HLG at 115 watts also and there is a difference in the warmth, quite uncomfortable to my hand.
Love both lights, also have 2 Maxisun MF1000s. Individual smaller lights can give more versatility and better coverage.
Love both lights, also have 2 Maxisun MF1000s. Individual smaller lights can give more versatility and better coverage.
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crimsonecho
Well-Known Member
yeah i hope they dont drip oil and shit onto the plants during the grow.. they look nice horizontally they look like they can move serious air so probably the fixtures are gonna stay cool with 2 of them on the opposite walls running at min speed wish i didnt HAVE TO take these measures though, wish it was a choice rather than a necessity.
yeah the ones i’m using are the cheapest ones you can buy. manual, no lights on them etc. i bought brand name before and they were like covered with lights, didnt came back on after a blackout, had auto shutdown after 24hrs or something. really terrible for growing purposes.
i have an ir gun but i heard they dont read well off bare aluminium. i dont know if thats true or not but supposed to be something about the color of the aluminium or whatever.
well anyway on this diy i use in one of my 2x2 heatsink temp reads 24-25C, thats my room temp atm so its fine and probably getting a wrong reading by directly pointing the ir gun to the actual cobs but when i get underneath the cobs and point it directly at the middle of the diode it reads like 85-90C.
Moflow
Well-Known Member
@crimsonecho the FOTOP boards talked about earlier ran pretty cool temps without heatsink.
The diodes on them are more spread out than QB288s.
I'm still using them.
Here's quality heatsinks I got for 2ft strips a few years ago from diyleduk. I believe he had 4ft ones too.
They fit any 2ft strip.
The diodes on them are more spread out than QB288s.
I'm still using them.
Diy FOTOP grow board 280x900x2.0mm (L29.52"xW9.18")
I got these to test. Grow Board 280x900x2.0mm (L29.52"xW9.18") , 3.0/W conductivity,2OZ, 16S50P, 129.6-372W, 43.2-49.6V, 800pcs Samsung 561C s6 leds. They cost an "O" for 2 boards....... £200. Awaiting HLG 320H 48A from TME, cost a "q" ....£80 In my area I can use these as a side wall of...
www.rollitup.org
Here's quality heatsinks I got for 2ft strips a few years ago from diyleduk. I believe he had 4ft ones too.
They fit any 2ft strip.
Moflow
Well-Known Member
Place a bit of black tape on aluminium and take ir reading