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Reply With QuoteOh i'm so fucking subbed to this...........great info on the DIY Gastanker........
Hehe. So many people fail to crunch numbers. For instance I cringed when I saw people buying those actinic aquarium bulbs - I ran a spread sheet and you could run 4x the wattage and replace your standard bulbs 4x more often for the same price. And that's including the price of the additional T5 units, bulbs, and electricity. So unless the actinics are >400% more efficient, which of course is impossible, .... ** Of course if you have a given space and yield is all that you care about then by all means.Originally Posted by Rasser
Can I put this in my signature: lol
"in fact I could run an additional 200w of cheapo LED 24hrs/day for 989 days and it would still be less expensive than going with half the wattage in CREEs."
Thank you very much also for the part list, with links !
Did you mount the chips with nuts and bolts or did you make threads ?
( I see one screw line up with a fin, but I'm not sure)
And have you found a name for your two lights, or shall I just refer to them as Gastankers Liberty Bell 2700 and his Grapple 6000
Regarding the mounting - neither... I went redneck style and just drilled an undersized hole and went straight at it with the screws. Aluminum is soft... softer than some woods I've worked with. Didn't see a need to pre thread although bolts would have probably been a much better option. If I take them apart remind me to put them back together with bolts.
**Keep in mind the base of those heat syncs are >1/4" thick.
Last edited by Gastanker; 06-25-2012 at 01:02 PM.
Oh i'm so fucking subbed to this...........great info on the DIY Gastanker........
Glad to have you along Psuagro. And I hope you took no offense to the actinic comment - after all here I am spending damn near $1/w when I have many hundreds of watts of perfectly fine CFLs just laying around in boxes.
Hey Gastanker! I had no idea you had gotten this far with LEDs!! I guess you got your panel growing for a little while now, your plants look really good! promising start for the party cup competition!! (are you going to flower without red spectrum or just make another panel?) I will definitely turn to you when comes time to build my first panel!! it won't be for a while though. NICE JOB!!
NOW http://www.rollitup.org/led-other-li...tual-12-a.html FIRST TIME http://www.rollitup.org/grow-journal...grow-pics.html
Saving the world one tree at a time
Yup, had them about 20 days so far and they seem to be chugging along fairly well. If I end up liking the results from my first few plants I might make another larger panel consisting of 30w white arrays and a few 630nm 3w reds but atm this is all just a test and will be just the single warm and cool white arrays.
Last edited by Gastanker; 06-25-2012 at 10:43 PM.
Ha took no offense............I hate my wave point super blues anyways.........rock those diy led's Gas........be safe and happy growing
The good news with T5s is you can quickly change out a ~ $20 mistake, PLUS, watt for watt, they are still a lot cheaper than LEDs (plus cover ~ 3xs the foot print/$), AND until recently, no mfg has made an all-white fixture, though I think I would want one string of 4-8 @ 630- 660 as a back up and/or to run an A/B test
Rock on
Last edited by PetFlora; 06-26-2012 at 08:21 AM.
http://www.rollitup.org/drain-waste-...ing-320-a.html
[/url]Stripping Back the BS. Vegging 6 Clones under 22w http://www.rollitup.org/led-other-li...s-vegging.html
Totally agree. $/w LEDs make no sense at all as of now. Hopefully in the future that will change. I'm always getting stuck on CLFs as they by far are the lowest $/w. Same reason I don't see getting rid of my HID anytime soon.
Quick chart. My DIY LEDs are priced at 160 and not the 180 as I am not factoring in shipping prices for the other units. The wattage for the 600w ipower is 600, got covered up by the watermark.
So I'm bored and thinking of the next project. I'm thinking a 15lb 8.5"x36" heatsync with 9x30w warm white arrays and 14 3w 660nm red Osrams. Can't figure out how I would want to place them...
Arrays down the middle would be the most even but would make a narrower cast pattern. Arrays on the side would create a wide cast pattern but less equal light distribution. Or I could alternate the whites which would give a wider more even cast pattern but then it doesn't look symmetrical lol. I guess I shouldn't really care about look eh?
Hmm, these came out kind of tiny.
I thought we came to the conclusion that 5000k(neutral white) had the best plant absorption peaks on the spd??.......idk........but i do recommend a remote constant current driver:P.............good luck
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