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pop22
Well-Known Member
Wish there where some with wire pre-soldered on. I can't solder anymore, I shake like a pain mixer...
You might be able to use a push connection. Wago connectors you just push the wire into a hole, and latch something too crimp it. Make sure you get a potentiometer with pre soldered wires compatible with it
CobKits
Well-Known Member
noted
StickyTreez
Member
New light not working.... I wired up all the leds in a series: Starting from driver wired brown output to the first led +, then wire from first led - to second led +, then second led - to third led +, then third led - to forth led +, then forth led - back to the driver output blue wire.
On the input AC i wired green to green, white to blue and black to brown.
Driver HLG 185H 48A
4 CXM 22
What am i doing wrong :/ ?
Using wago connectors and checked to make sure it was getting contact on the wires.
On the input AC i wired green to green, white to blue and black to brown.
Driver HLG 185H 48A
4 CXM 22
What am i doing wrong :/ ?
Using wago connectors and checked to make sure it was getting contact on the wires.
CobKits
Well-Known Member
wiring in series
you need a driver capable of ~200V to run 4 cobs in series
that driver can run any number of CXM22 but they need to be wired in parallel so the overall voltage required by the cob array is a match for the ~50V the driver provides
StickyTreez
Member
Thanks, upon wiring in parallel it did work.
pop22
Well-Known Member
This is what i have chosen with your help. will the leds get me through vegetative and flowering stage? thank you
Attachments
CobKits
Well-Known Member
these heatsinks instead:
https://cobkits.com/product/120-mm-passive-pin-fin-heatsink/
no need for actives at 50W
so no apv fan drivers needed either
also id just go for 3500k 80cri straight across instead of blending the chips
https://cobkits.com/product/120-mm-passive-pin-fin-heatsink/
no need for actives at 50W
so no apv fan drivers needed either
also id just go for 3500k 80cri straight across instead of blending the chips
ThatSpudGuy
Well-Known Member
Hi mate im thinking of going with 8 x citizen 1212s to cover my 100cm x 100cm tray. Im just wondering what sort of frame to build for it. Any help appreciated thanks
ThatSpudGuy
Well-Known Member
They are nice mate the first one i like the most think ill go for that one. Heres my parts list for when im ordering except for the wires, reflectors and cob holders. Do you think i have everything?
8x 133mm pin fin clu048 heatsink (for 50-65w cob) 8x CITIZEN CLU048 1212, 3000K/3500k 34.6V 80Ra COB led chip 2x meanwell hlg 185-c1050 drivers
DrBlaze
Well-Known Member
If you check out threads here where they measure the light that their fixtures produce (in a grid pattern), you will see that they always have a hot spot in the center.
The most uniform design I've seen (with cobs) is an 8 cob fixture, where the cobs are arranged in a 3x3 grid with no center cob in the fixture. The overlapping light from the 8 cobs light the center just fine and the light level is extremely even across the whole canopy.
Good luck
CobKits
Well-Known Member
you need chip holders (bjb or ideal) as well as thermal interface material (either 8 pads or a 4g tube of arctic silver)