Introducing CobKits.com - specializing in DIY and Citizen COBs

[topcat]

But, you posted in his thread.

 

[oldbeancounter]

But, you posted in his thread.

Shoot,
sorry I started part way through reading.

 

[topcat]

Please don't get me wrong. I appreciate your contribution, I just think it would have been better to post in LED Companies w/links. Please forgive.

 

[chuckie86]

cxa and cxb are part compatible for a given # like 2540, the A/B is more like a gen or a bin

Can u get me the metal holders for these so I don't gotta soider anything

 

[oldbeancounter]

Please don't get me wrong. I appreciate your contribution, I just think it would have been better to post in LED Companies w/links. Please forgive.

I do not get offended unless offence is intended then I split.
I am not at all offended.
Mistake is mine for posting without reading headers.
carry on and ignore me LOL

 

[Go go n chill]

@CobKits ! Thanks for pointing me down the correct path. I’m looking forward my next two builds. I’ll post in my journal and how you helped. I intend on pointing out my mistakes and how you corrected them. Awesome job my friend

 

[Go go n chill]

Mocked up!

 

[CobKits]

restocked some citizen chips on site:
1212 2700k 80CRI
1212 5700k 90
1212 6500k 80
1818 3000k 80
1818 3000k 90
1818 3500k 90
1818 4000k 90
1825 3500k 80
1825 3500k 90<------ citi will be discontinuing these soon, if you need qty,please let me know soon! last orders 9/30

 

[topshelf_sac]

Hello everyone! I am a proud user of cobkits lights and have been killing it! Im looking forward to more activity on this board. I have an IG page too with more pics. Thanks to cobkits for all his hard work!

 

[topshelf_sac]

 

[topshelf_sac]

 

[Renfro]

View attachment 4375539

CXM-22?

 

[topshelf_sac]

CXM-22?

Yes, i have 9 of them set at 75 watts a piece for a total of 675 watts per fixture.

 

[Renfro]

Yes, i have 9 of them set at 75 watts a piece for a total of 675 watts per fixture.

I am running 12 at 60 watts a piece for a total of 720 DC watts per fixture.

 

[topshelf_sac]

I am running 12 at 60 watts a piece for a total of 720 DC watts per fixture.

I set mine up based on cobkits recommendation. I would be curious to see if there was any difference between our lights. You got a pic?

 

[Renfro]

I set mine up based on cobkits recommendation. I would be curious to see if there was any difference between our lights. You got a pic?

I am doing the same, I just told him that I didn't mind spending extra for more cobs and driving the at a lower wattage because I am trying to make cadillac lights lol. The lower the power level the more efficient the chips run and the less heat per watt you generate. You also get a better spread and can run the light closer than a light thats say driving vero 29's at 100 watts each. These aren't going to be the cheapest lights but they will be bad ass. I am using 3 drivers per light so I am setting it up so I can dim them individually and I can power them down individually, so rows of 4 cobs can be individually controlled. May as well. I am putting power meters on the lights as well since I will be running them at 240v a kill a watt meter won't help me out. I will use the power meter to aid in dimming the lights so I can easily dial in levels that I have determines put out the right amount of light for certain stages of growth. I will be using around 760 watts from the wall and putting 720 watts to the cobs.

I am building 6 of these lights, still waiting on some parts and I am rather busy so I am putting in a little time here and there. I have a thread on my light build: https://www.rollitup.org/t/renfros-760-watt-cob-led-build-1kw-de-hps-replacement.993167/

 

[CobKits]

I set mine up based on cobkits recommendation. I would be curious to see if there was any difference between our lights. You got a pic?

he obviously has 7% more power in the rig and gains maybe another 5-6% running them at 60 and 75W

so not night and day but it is a bump. youd have to balance the 5-6% efficiency bump vs the 25% extra cost (arguably could be recovered in electricity bill or yield in a few runs)

you could do the same thing by turning yours down a shade and putting some extra cobs in your room. its completely modular

 

[Renfro]

he obviously has 7% more power in the rig and gains maybe another 5-6% running them at 60 and 75W

so not night and day but it is a bump. youd have to balance the 5-6% efficiency bump vs the 25% extra cost (arguably could be recovered in electricity bill or yield in a few runs)

you could do the same thing by turning yours down a shade and putting some extra cobs in your room. its completely modular

Just shows there are many ways to skin a cat. It's all about what you are willing to spend up front.

Hey hows that spectrum for the CXM-22 Gen 4 3500k coming along? I want to add that to my info packet and post it in my build thread.

 

[topshelf_sac]

he obviously has 7% more power in the rig and gains maybe another 5-6% running them at 60 and 75W

so not night and day but it is a bump. youd have to balance the 5-6% efficiency bump vs the 25% extra cost (arguably could be recovered in electricity bill or yield in a few runs)

you could do the same thing by turning yours down a shade and putting some extra cobs in your room. its completely modular

I am happy with my results right now and I am dialing in some other things and don't want to mess with the lights. I might think about it when 2030 is closer to us than 2020 LOL.

 

[Renfro]

I am happy with my results right now and I am dialing in some other things and don't want to mess with the lights. I might think about it when 2030 is closer to us than 2020 LOL.

Thats a cool thing about cobs too, change chips in 3 or 4 years when they are much better.