Need help for diy 2x4 build.
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- LED-Curious
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This will be my second build. Looking to build a setup for an 8 square ft coverage. The first light is 3 Vero 29s 36 volt driven 2100, before I understood anything bout cobs. This time I was looking to get some 70 volt and drive them softer.
- Jolly Green Giant
- LED Wizard
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if your looking for roughly 50w per sqft... 8 of the Vero 29C's (the 70v ones) on 2 hlg-185h-C700's would put you pretty much dead on.. the data sheet shows at 855ma they need 66.2v and give 56.6 watts.. drop that to a 700ma driver your at/around 50w each.... I used the 855ma voltage(even though 700ma will be lower) to see that 4.3 of the cobs would fit on each of those drivers...
color temps would depend on what you plan on doing... just veg.... just flower.... or both..... 3000k 4000k mixes are nice for both... straight 3500k also nice.. I use 3500k quantum boards for both veg/flower and love them.
color temps would depend on what you plan on doing... just veg.... just flower.... or both..... 3000k 4000k mixes are nice for both... straight 3500k also nice.. I use 3500k quantum boards for both veg/flower and love them.
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- LED-Curious
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I thank you for the reply. I would like to use like to use a few less cobs to do the job. Heat is not a huge problem and electric is cheapish round here.Jolly Green Giant wrote: ↑Wed Dec 13, 2017 3:38 amif your looking for roughly 50w per sqft... 8 of the Vero 29C's (the 70v ones) on 2 hlg-185h-C700's would put you pretty much dead on.. the data sheet shows at 855ma they need 66.2v and give 56.6 watts.. drop that to a 700ma driver your at/around 50w each.... I used the 855ma voltage(even though 700ma will be lower) to see that 4.3 of the cobs would fit on each of those drivers...
color temps would depend on what you plan on doing... just veg.... just flower.... or both..... 3000k 4000k mixes are nice for both... straight 3500k also nice.. I use 3500k quantum boards for both veg/flower and love them.
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- LED-Curious
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Is it difficult to solder wire to cob?
I didn't have a clue about soldering before I built my first fixture. I was actually scared, that learning a new skill will be difficult, or hard to master. Looking up on youtube "soldering for dummies" taught me everything I needed to know. I bought a $20 solder online, practiced on a few electrical wires I had lying around, and it didn't take long to feel competent enough to solder the wires to the cobs. Go for it.
(But then again, Bridgelux has Vero 29's also in the SE version, which uses connectors that save you from soldering altogether.)
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- LED-Curious
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Thanks. I watched the videos, I have practiced on a couple wires my self. I got the got cheapo solder too, glad to hear it's not to difficult. My first build used the se veros.majorana wrote: ↑Wed Dec 13, 2017 3:10 pmI didn't have a clue about soldering before I built my first fixture. I was actually scared, that learning a new skill will be difficult, or hard to master. Looking up on youtube "soldering for dummies" taught me everything I needed to know. I bought a $20 solder online, practiced on a few electrical wires I had lying around, and it didn't take long to feel competent enough to solder the wires to the cobs. Go for it.
(But then again, Bridgelux has Vero 29's also in the SE version, which uses connectors that save you from soldering altogether.)
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- LED-Curious
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This is an updated pic dec29.
Looks great!
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- bvolt
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Looks great!Jibblerjoe wrote: ↑Mon Jan 01, 2018 2:29 pmThis is an updated pic dec29. IMG_20171230_180507058.jpg
You might wanna double-check anything you've read here...
- bvolt
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Driving those "D"-type Veros a 2.1A isn't a bad idea - esp since it's just 3 COBs...Jibblerjoe wrote: ↑Wed Dec 13, 2017 2:16 amThis will be my second build. Looking to build a setup for an 8 square ft coverage. The first light is 3 Vero 29s 36 volt driven 2100, before I understood anything bout cobs. This time I was looking to get some 70 volt and drive them softer.
- The additional power provides for canopy penetration.
BTW - I'm in a 2 x 4 also.
I think you'll find between 250-425w (of quality LEDs) will be as much as you'll require w/o supplementing CO2.
- 250-425 = range for veg/flower
- 5 x Veros Ds @ 1.75A (~350w)
- 2 QB 304s @ 2.1A (~260w).
- Having the extra power available, allows me to run them softer (thru dimming)
If you're in the US - 2 QBs or Phantom boards would give you great spread to supplement the penetrating power you currently already possess.
Good luck. Keep us posted on your build and your crops. Later.
You might wanna double-check anything you've read here...