Parts list for a 2x2 COB build

ChaosHunter

Well-Known Member
Anyone have a parts list for a COB light build ? Cobs, driver, heat sinks, holders ? Something in the 200W mark for 5sqft of floor space.

Looking for recommendations.
 

ChaosHunter

Well-Known Member
Would like to drive 4 up to 200W max. If I were to do a board style build I would want to only use HLG Quantum's. I'm not apposed to Standard style COBs though as they make great lights too. I need a fit and finished end product. Was looing at Rapid LEDs kit but may hold out to see what @CobKits has coming up.
 

ChaosHunter

Well-Known Member
In my 2x2 I use 4xclu048-1212 3000k 90cri driven at 1.05A but you can get a 1.4A driver and dim down if needed.
What driver are you using ? I would prefer to have it on a dimmer, poitometer or on the driver itself. 3-3.5 K to do both veg and flower.
 

ANC

Well-Known Member
That A part after the model number of the driver tells you it is dimmable with little pots on the driver.
 

thetr33man

Well-Known Member
1 citizen 1825 3500K90Min 1 COBS @2200 mA (https://led.cdiweb.com/ProductDetail/CLU0581825C4353H5K2-Citizen-Electronics-Co-Ltd/591004/)
4 SQ.FT. CANOPY 91% EFFICIENT DRIVER @10 CENTS PER KWH
Total power watts at the wall: 126.87
Cobs power watts: 115.45
Total voltage forward: 52.48
Total lumens: 14931.72
Total PAR watts assuming 10% loss: 40.12
Total PPF: 214.39
PPFD based on canopy area: 576.93
1 HLG-120h-48A driver
1 https://led.cdiweb.com/ProductDetail/MODULEDGIGA152150BHBG-MechaTronix/574069/
https://led.cdiweb.com/ProductDetail/MODULEDGIGA152150BHBG-MechaTronix/574069/
No cob holder needed, it will screw directly to the heatsink. Youll have to solder the wires on, but thats easy on a large cob like that.... It will probably be too bright for that area, but you can adjust it via the built in pot
 

Nutria

Well-Known Member
What driver are you using ? I would prefer to have it on a dimmer, poitometer or on the driver itself. 3-3.5 K to do both veg and flower.
I use a HLG-185h-1050A since B version was not available.
Get a B version driver, it has 2 additional wires for an external potentiometer
 
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