Introducing CobKits.com - specializing in DIY and Citizen COBs

CobKits

CobKits

Well-Known Member
kaivorth said:
So I currently have 2 HLG-185H-48B's

I have a friend who wants to try out this COB lighting. What would you recommend? Efficiency isn't the biggest deal, just had to work for 4-5 plants. Trying to keep cost down if possible.
Click to expand...
youre going to need to find some cobs that light up under 48V, 48B is a weird driver for our application

you'll be limited to about
0.25A citi1818/luminus cxm22
0.35 citi 1825/vero29B

might be better to carefully throw some 36V cobs on there (i say carefully because any less than 3 on there will blow up almost immediately).

make sure you use appropriate number of cobs and make sure wiring is solid so you dont drop a cob
 
nfhiggs

nfhiggs

Well-Known Member
kaivorth said:
So I currently have 2 HLG-185H-48B's

I have a friend who wants to try out this COB lighting. What would you recommend? Efficiency isn't the biggest deal, just had to work for 4-5 plants. Trying to keep cost down if possible.
Click to expand...
Your best bet for matching those drivers is Samsung F series strips instead of COBs. Pairs of 22" 24V strips in series, or the big 44" 48V strips all parallel.
 
H

hour

Well-Known Member
CobKits said:
just go thru your distributor

those failures are pretty rare. id triple check your wiring first. maybe there was something else obvious you overlooked that fixed itself when swapping the driver
Click to expand...
Guess I had the rare failure - I used Wago lever connectors and disconnected/reconnected the power and output sides probably 5 times (while redundantly checking all solder connections) over the course of a few stoned months... eventually swapping them for new connectors - still no dice. The frame was built to accommodate the driver so it was quite literally a drop in replacement process to unexpectedly blind myself in the face and rejoice.

The one thing that I didn't do with the original driver that I'm doing now is have a dimming pot on the leads. The original was capped off, running full bore. I'll reach out to the distributor, but for now I'm cautiously running them at maybe 75% - haven't killawatt'd it yet.

I have two (4 x CLU048-1212) veg tents and this crude remix of my original controller that I lost the source code for. My other touch screen controller needs to be flashed with latest code which will control my two 4x4 flower tents (8 1212's on 2 x 185H's and 3 Vero29s on 240H - and this 9 x 1212 480H-1400 as the sole fixture in tent #2). Hoping my all-LED 4 tent extravaganza will last longer this time. I need to catch up on quantum boards and build another fixture to satisfy curiosity.

Right veg tent light is off and empty in pic as its former inhabitants were moved to flower and the coolness of the basement has given me cloning problems for the first time in my life.

The target dimming of each tent in pic is done from Android Things raspberry pi to Arduino and breadboard with transistors. The arduino performs some trigonometry SIN mumbo jumbo that I don't even fully understand but honors min and max wattages mapped to 0-255 and perform smooth as butter, which were calculated for each setup using a kill-a-watt. 2.1x5.5mm plug sets mate the output of each transistor to its driver. Exhaust is a dial knob inline cord controlled duct fan from (insert for favorite generic fan clone company here) @ Amazon. Tapped in to where the knob goes and control with a particle photon, which is also serving the temperature and humidity values from each veg tent over serial and exposes end points to hit over the web (though Android Things can serve this web style too).

BTW acclimating clones and other plants to LED works remarkably well using sweeps on your driver. I wrote a little simulated cloud cover function that accepts a min and max brightness value and a bias % towards one or the other. Meaning for example each tent can run say 40%-90% brightness but only run on the lower scale X % of the time. Occasional cloud cover.
 

Attachments

InTheValley

InTheValley

Well-Known Member
I'll have my CobKit products build ready to roll for lights on tomorrow. Had a problem with fuses. Went thru like 10, cant read the dam number on them.

Going to give 6amp-250v a try, have to store run in AM.

heavy bith
 
CobKits

CobKits

Well-Known Member
remember all meanwells have high current on starting. you may need to use slow blow fuses or upsize them considerably
 
InTheValley

InTheValley

Well-Known Member
morning bro, just put 5amp, all is Fn AWESOME BRAH,!!!


Finalllyyy, getting set to button it up and hang it. Will have pics later for sure..

Thanks Again man, for all your help and speedy service
 
Last edited:
K

kaivorth

Active Member
CobKits said:
youre going to need to find some cobs that light up under 48V, 48B is a weird driver for our application

you'll be limited to about
0.25A citi1818/luminus cxm22
0.35 citi 1825/vero29B

might be better to carefully throw some 36V cobs on there (i say carefully because any less than 3 on there will blow up almost immediately).

make sure you use appropriate number of cobs and make sure wiring is solid so you dont drop a cob
Click to expand...
CXM22's would be sweet if I can get this to work. So how will this work if driver is rated for 48V and the COB needs 50V? Could I run 2 on each driver? Series or Parallel?
 
CobKits

CobKits

Well-Known Member
remember that cob voltage is dictated by current, see datasheet.

running cxm22s at 0.25A would be major flux tho
 
Getgrowingson

Getgrowingson

Well-Known Member
@CobKits . I know you don’t do much Cree stuff but I have a load of cxb3590s and I’m looking for heatsinks. Also might be interested in a cheap veg setup to replace a 600w metal halide for veg. Currently the load of Cxb3590s I have 6 at 5000k bd that I’m going to run off two hlg 240c1050s to replace my one 5x5 veg room and want to do my other 5x5 veg with something you got but on the cheap yet more efficient then the mh that’s in there.
 
t-bot

t-bot

Member
Hi @CobKits,

Could you let me know when you plan on getting more HLG-185H-C1400B drivers in stock? I have a 2 x 3 x 4 box used for flowering and would like to build a cob light for it. I'm thinking of using the following:

4 x Clu048-1216C4 3000K 90 CRI Gen6
4 x BJB holder for Citizen CLU048 series
4 x LEDiL Angelina reflector for BJB Holder Citizen CLU048
100K Potentiometer for driver
MeanWell HLG-185H-C1400B driver

From what I read, this driver should be able to run all 4 cobs in series right? @1400ma these cobs should run about 35v a piece. Driver has max 143v (4 x 35 = 140V).
As for cooling, I will be using 4 CPU heat sinks and fans I have already.

Only thing missing from your site is the driver.

Would this be a good build or overkill?
 
CobKits

CobKits

Well-Known Member
t-bot said:
Hi @CobKits,

Could you let me know when you plan on getting more HLG-185H-C1400B drivers in stock? I have a 2 x 3 x 4 box used for flowering and would like to build a cob light for it. I'm thinking of using the following:

4 x Clu048-1216C4 3000K 90 CRI Gen6
4 x BJB holder for Citizen CLU048 series
4 x LEDiL Angelina reflector for BJB Holder Citizen CLU048
100K Potentiometer for driver
MeanWell HLG-185H-C1400B driver

From what I read, this driver should be able to run all 4 cobs in series right? @1400ma these cobs should run about 35v a piece. Driver has max 143v (4 x 35 = 140V).
As for cooling, I will be using 4 CPU heat sinks and fans I have already.

Only thing missing from your site is the driver.

Would this be a good build or overkill?
Click to expand...
just put 8 drivers up on site

build looks good
 
You must log in or register to reply here.
Top