pulpoinspace
Well-Known Member
its a beautiful light. 200w of 3000k and 200w of 5000k on different channels? pretty cool.
Pictures of your DIY lights - Post your pics!!!
- Thread starter TimeToBurn
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JavaCo
Well-Known Member
Thanks , I aways say never too late to learn. Maybe take a machine tool program at a school close by. Mostly what it took to make was a lathe and a metal mill.
Yeah the light is built for a 3x3 grow space 9 square feet and uses 2 cobs per a square foot. Really it is 1 and two halfs due to spacing. Full blast I get 395 watts from the wall.
Close 200 watts of 2700k and 200 watts of 4000K with a switch to turn off the 2700K and put the fixture into veg mode. A even mix of both would be 3300K for flower but I got the 2700K cranked up to a 75% duty cycle right now 4000K is at 40%. Guessing thats around 3100K maybe 3000K.
Airwalker16
Well-Known Member
Are the 2 center cobs angled on like a rooftop like pitch? And is that hollow bar stock or actually huge thick plates of aluminum??
OneHitDone
Well-Known Member
What was your outcome on this?
Hot Diggity Sog
Well-Known Member
Still going. After dimming down to 60 watts, things are great. All 16 boards have been online for maybe 10 days or so.
Day 49 of flowering:
Hot Diggity Sog
Well-Known Member
That is some amazing work!
Airwalker16
Well-Known Member
Just got er finished up.
Cxb3070s and pcbs with blue and white Cree xpe and red osrams.
38w outside 6 cobs on dimmer, rocket switches to independently control middle 3 cobs which are 50w each and the pcbs are 24-36v @700 ma.
There is also far red on the 6 small alum sq pieces as well.
2- 6 pin and 1- 3 pin connectors were used so drivers are remote and can have the wire fee through a tent or similar.
Cxb3070s and pcbs with blue and white Cree xpe and red osrams.
38w outside 6 cobs on dimmer, rocket switches to independently control middle 3 cobs which are 50w each and the pcbs are 24-36v @700 ma.
There is also far red on the 6 small alum sq pieces as well.
2- 6 pin and 1- 3 pin connectors were used so drivers are remote and can have the wire fee through a tent or similar.
Last edited:
Airwalker16
Well-Known Member
I was hacking an ecosunlite I won. The PCB s came from it @HydroFood .
@Humple The drivers ran them at 50w so I did what I could. When the outside ones are full blast, they seem just as bright at 38w though in all honesty.
In the 3ed picture are the connectors.
G16 aviation.
My favorite part is that I utilized the smaller connectors to each heatsink. That has already come in handy when I realized I mixed up the CCTs in the wrong place.
Airwalker16
Well-Known Member
Forgot to mention ita got far rred diodes too on those small alum sq tubes. 6 total.
Edited on main post.
Edited on main post.
Airwalker16
Well-Known Member
Here's the completed build. Extra cross supports and eyelids to hang from and also be used as feet to keep everything up off the ground. Mainly the far reds. They were imposing problems that weren't there before when I just used the cross braces. That was enough. But now the eyelets do the job.
Also here's a pic of the connectors everyone's so curious about. Haha
Also here's a pic of the connectors everyone's so curious about. Haha
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shimbob
Well-Known Member
Added some old school analog volt and amps dials to my light on the DC side. I dig the retro look for keeping an eye on things. Sorry about the extension cord in the way, needs to be relocated, still tweaking with the timer too.
Last night was the first time these dials were wired in and I'm getting a strange result.
The voltmeter is spot on, 44.9v that my digital voltmeter confirms, but the ammeter says 17amps from an hlg-600H-42A!
The shunt is 20A/75mV and dial is 75mV as well, no mismatch. I measured the voltage across the shunt with the digital meter and found 58.5mV, which translates to 15.6A. I find that value more believable than 17A.
44.9x15.6=700watts on the DC side? Sweet.
(Disclaimer, my digital voltmeter is one of those cheapo HarborFreight red ones, not the highest quality)
Last night was the first time these dials were wired in and I'm getting a strange result.
The voltmeter is spot on, 44.9v that my digital voltmeter confirms, but the ammeter says 17amps from an hlg-600H-42A!
The shunt is 20A/75mV and dial is 75mV as well, no mismatch. I measured the voltage across the shunt with the digital meter and found 58.5mV, which translates to 15.6A. I find that value more believable than 17A.
44.9x15.6=700watts on the DC side? Sweet.
(Disclaimer, my digital voltmeter is one of those cheapo HarborFreight red ones, not the highest quality)
TomBombadil420
Active Member
Hello friends. I made something i´m trying today. A little hot even with 3 thermaltake high speed fans.
Those are driverless cob leds that I bought ot Aliexpress, very cheap, I know they will surely be a crap but I wanted to try.
There are 7 cobs of 50W each, I do not have yet to verify that they are real but the seller has very good reviews. They are 350W that have the double more brightness than the MarsHydro 300W that I am using.
The only problem is that they heat up a lot and the tent reaches a temperature of 32C (with MarsHydro never touch 25C and I have to open the door to release heat.
What could you recommend? Thank you
Those are driverless cob leds that I bought ot Aliexpress, very cheap, I know they will surely be a crap but I wanted to try.
There are 7 cobs of 50W each, I do not have yet to verify that they are real but the seller has very good reviews. They are 350W that have the double more brightness than the MarsHydro 300W that I am using.
The only problem is that they heat up a lot and the tent reaches a temperature of 32C (with MarsHydro never touch 25C and I have to open the door to release heat.
What could you recommend? Thank you
captainmorgan
Well-Known Member
Threw this HLG QB 96 elite fixture together and plan on adding a DIY reflector. This photon pushing beast is 2.6 umoles/j, driven at 1050 ma and 545 watts at the wall over a 5x5 screen for just under 22 watts a sq/ft.
Go go n chill
Well-Known Member
6” exhaust fan will pull the heat out in a jiffy
Go go n chill
Well-Known Member
The light fixture is pissed off because it’s not growing Cannabis!
Airwalker16
Well-Known Member
Flowering?