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Hey bro, I was looking around the forum for anyone in the Fresno area and I happen to run across your name. Wondering if you chat or link up sometime. I live in Clovis. :-) happy new year

The CLU048-1212C4-353M2K1 is rated at 152 lm/w when tested at 1080ma and the CLU048-1212C4-353H5K2 was rated at 125 lm/w when tested with the same current. Is that significant enough to take into consideration?

Wow Those are really impressive! Another question. What are my heat sink options for these cob's? I work in IT and have access to heatsink and fans. I know its a shot in the dark but could I possibly use those?

can you @ them so I can take a look?

Gotcha, thanks again! Do you guys know of any grows using citizen COB's? I've been looking everywhere and it seems to be threads with chatter but no grow.

@CobKits Thanks for the insight. I think the best route is to go with Constant Voltage. Are there any drivers that can drive a stronger current to the cobs? I heard that these chips can handle stronger currents quite effectively so, I would like to have a stronger current than .89A. Then...

@HydoDan Thanks!

Hello! I just wanted to get some opinions. I pretty new to making my own electronics but took some classes in high school so I'm familiar with some terminology (ohm's law, etc). I'm pretty set on the COB's I want to use unless anyone has had a terrible experience with Citizen cobs. I'm...