bizfactory
Well-Known Member
So nice! Really like your build. What drivers did you use?(15x) Vero 29 3500k @ 1.4a 937 watts
3 rails of 5 (48"x30")
Spacing is 11 1/8" between the 5 per rail and 13" between rails.
So nice! Really like your build. What drivers did you use?(15x) Vero 29 3500k @ 1.4a 937 watts
3 rails of 5 (48"x30")
Spacing is 11 1/8" between the 5 per rail and 13" between rails.
Thanks!So nice! Really like your build. What drivers did you use?
Reported!Hee hee hee;
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So it looks like he's getting pretty similar light intensity to DE HPS (except in the center at 24", but the spread looks better for the most part with cobs), no IR and less heat from the cobs with better spectrum all while using almost 200 watts less power. If these were CXB3590s he'd probably get the same intensity with 300w less power. No replacing bulbs or reflectors all the time either, and less cooling required. So what is your point exactly?You DIY'ers keep forgetting that it is the last graph in that test that is the one to beat. Not the decade old tech
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You DIY'ers keep forgetting that it is the last graph in that test that is the one to beat. Not the decade old tech
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It's interesting to see how differently the same bulb performs in a different frame.You DIY'ers keep forgetting that it is the last graph in that test that is the one to beat. Not the decade old tech
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This is a very good point to make. I think it was @stardustsailor who proposed the idea that COBs actually get better/more efficient as total operation time becomes greater.I'd be interested to the see the HPS DE grid after running the bulb for a month or two as well, as I'm sure the testing was done with a brand new bulb. Intensity degradation is a non-issue for the most part with cobs the way that we are driving them.
To who? The Fire Marshal? LMAO!Reported!
This is an excellent point; nobody makes monthly lamp changes and one of the biggest selling points of DE is the two to three year lamp replacement schedule. Since there is no appreciable light depreciation with softly driven COB LED, not only is there a cost and labor savings in maintenance but an even bigger return on the differential in light output; LED with a fresh bulb, but growing every day until the lamp is replaced. This directly impacts yields, so it's not an esoteric point.I'd be interested to the see the HPS DE grid after running the bulb for a month or two as well, as I'm sure the testing was done with a brand new bulb. Intensity degradation is a non-issue for the most part with cobs the way that we are driving them.
Awwww come on, the title of the thread is 'post pics of your DIY lights'... so I did! He didn't say what KIND of lighting it had to be!To the authorities!
Awwww come on, the title of the thread is 'post pics of your DIY lights'... so I did! He didn't say what KIND of lighting it had to be!
It's my ghetto special veg panel. Worked tits too, the rails are old bathroom fixtures from the local Habitat for Humanity and the CFL bulbs all came from the local food bank!
Bootstrapping is what I do!
thanks for showing us and taking all the measurements. helpful indeed.(15x) Vero 29 3500k @ 1.4a 937 watts
3 rails of 5 (48"x30")
Spacing is 11 1/8" between the 5 per rail and 13" between rails.
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No worries, I was feelin' the love all the way...I didn't really report you, bub.
Just jerking your chain, bustin your balls!
I'm building a bookshelf for cloning as we speak, homemade everything. DIY is the way to go!
Like I wanna spend a grand on Kessil screw ins for it? That thing was replaced and discarded long ago, but it remains a fond memory! I think I spend a total of fifteen bucks to build it.BTW @ttystikk
All those CFLs could probably be replaced by more efficient tech, hint hint, nudge nudge
That wattage draw is for the whole lamp, COB's and fans. Reading were taken using a Kill-a-watt meter. I could save 20 watts if I turned my fans down to 11.2V but I like them running at full rpm.cdgmoney - are you including fans and other stuff in the 937 watts? I'm getting 1.4 * 36.4 * 15 = 764.4 watts plus 7% driver inefficiency should put you at 818 watts, which would be more than 300 watts less than a 1000 HPS DE (running at 1150w total)
Thank you! It was no problem at all.thanks for showing us and taking all the measurements. helpful indeed.
My take away from this, is that your unit can fill out a 5x5 tent nicely provided the bars are spread just a wee bit wider. a slightly wider spacing between bars with less overlap, minimizing the center hotspot.
I assume you have the sensor pointed straight up ? , sorry I have a thick head sometimes and get stuck on little things.
Yeah but you forget a few things. 1 the ac/de isn't cheap. 2. Yearly bulb change is a minimum and 3 yearly reflector change because they degrade faster than the de bulbs. Add it all up plus extra electricity and cob led still is the better investment bottom line.You DIY'ers keep forgetting that it is the last graph in that test that is the one to beat. Not the decade old tech
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