Introducing CobKits.com - specializing in DIY and Citizen COBs

[CobKits]

hey cobkits, when will the luminus cxm 22's 3500k 90 cri return in stock. Looking to buy like 10.

just put 60 up

 

[ANC]

You can make that whole row disappear with some drywall.

 

[madininagyal]

SOG came down. 10 cxm22's at about 550w with a single hlg600
no veg time, straight from rooted to flower. veg plus bloom in coco
View attachment 4103917 View attachment 4103918 View attachment 4103919 View attachment 4103920 View attachment 4103921

I like this setup, how do you feed them?? I got a nice space left because its too low to flower big plant but this setup is what i need

 

[DesertHydro]

I like this setup, how do you feed them?? I got a nice space left because its too low to flower big plant but this setup is what i need

hand water with a pump and a long hose to reach them. it was a pain in the ass. best to build a manifold and drippers

i started off ebb and flow but salt accumulation was burning them. you could do ebb and flow for ease but then do weekly flushes

 

[danthepluhmain]

hey can some one help me out i built 2 CLU058-1825 3500k but i cant find a mw driver that fund a 2,250ma for just two 50v cob chips

 

[CobKits]

hlg185h-48A will give you 2.1A per chip on those
https://cobkits.com/product/meanwell-hlg-185h-48a-driver/

hlg240h-54B will give you about 2.25-2.3A
https://cobkits.com/product/meanwell-hlg-240h-54b-driver/

 

[danthepluhmain]

thank you will be ordering some time this week

 

[TurkishRambo]

Hey! Was order some CXM22's and got question about drivers. I want power them: 2 COBs in serial on 1.4A. ELG-150-C1400A will be enough or i need HLG-185H-C1400A for 2 CXM22 on 1.4A ?

 

[CobKits]

the chips are 52.5-53.5V at that current, so look at the datasheet for the driver

 

[TurkishRambo]

Voltage is ok on both. Im not sure about watts: will it be enough to have 75w per COB on 1.4A(with 150w driver) or COBs will use more than 75w on 1.4A( so i need >150w driver)?

 

[CobKits]

1.4A x ~53V = ~74W

 

[TurkishRambo]

Thanks.

 

[CobKits]

its all about the current. voltage will follow the curve and theres your watts. the only reason it couldnt achieve a certain wattage is if voltage and current were limited

 

[boilingoil]

Hey @CobKits can you give me a hand at figuring out the correct potentiometer for a 3.3 amp driver to dim down to around 2.8 amps?

 

[CobKits]

dimming one meanwell driver at a time = 100k pot
2 drivers at a time 50k pot
3 drivers = 33k
etc.

 

[Dave455]

Hey! Was order some CXM22's and got question about drivers. I want power them: 2 COBs in serial on 1.4A. ELG-150-C1400A will be enough or i need HLG-185H-C1400A for 2 CXM22 on 1.4A ?

Ledgardener.com driver selection tool !!

 

[InTheValley]

my luminus are kickin butt, day 36 flip

 

[TurkishRambo]

Got one more noob question: should i have any chip temp problems with this setup or it will work fine?

 

[CobKits]

so the tube covers the heatsink to create a channel? the only thing i would consider is maybe little fans inside to blast air right over each chip.

 

[TurkishRambo]

Looks like 500m3 fan blow air good thru mine 90cm cooltube. So my point was to use only main fan without any 12v fans. Tube should look like this but with plastic top part: