A couple of weeks ago, I ordered
FIVE (5) of the 4-COB CXB3590 3500CD bin kits from Dan @
www.TimberGrowLights.com. He was kind enough to work with me on the price, meaning that I only had to give him about $150 more than buying them unassembled from the cheapest all-in-one DIY option (PLC after discount), including shipping, and he threw in diffusers on top for me.
These were cheaper than ordering from Cutter, and they come assembled and pre-wired, with professional, waterproof connectors.
Because of a delay in getting the 100K pots, he overnighted all five kits to me after a day of burning-in on their test bench. Talk about great service, and the packaging was secure and solid. Today, I was finally able to spend a couple hours building the frames from 1x1 1/8" thick AL angle, and wanted to do a quick review.
These utilize the 100mm x 70mm Cooliance CPL10070-XXX heatsink (datasheet attached - good for 73w in a 25C room, 63w in a 35C room), pre-drilled and tapped with Allen bolt socket head cap screws for mounting. Here's the cob assembly on one already installed.
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As you can see, the tapped holes for mounting are a little close to the cob holder, but with careful measurements, it wasn't too hard to finish.
Of course, Timber mounts the cob holders, cobs (with Arctic Silver thermal paste), and Ledil reflector adapters for you, then wires them all up to the Meanwell HLG-185H-C1400B dimmable drivers
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with 10a waterproof fuses inline
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plus 100K ohm pots
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and solid power plugs.
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I got mine in 110v style - yeah, I know the efficiency takes a hit, but it's my only option. Everything has ground wires built in, so you can attach to your frame or whatever to make it safe.
Here's the 4x3 assembly on lowest dim (need to tame the extra wiring once mounted)
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And off completely.
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The frame is simply a few pieces of 36" long, 1/8" thick, 1"x1" 6061 aluminum angle stock screwed together. The cobs are spaced nine inches apart, starting at 4.5" from each end, and the rows are are 16" apart on center.
This will be going in my 4x4 flower tent once I get the diffusers, which were backordered. So far, I've had it burning in at 100% here at home for a few hours and, while the heatsinks are only warm to the touch, they're rockin' in a room with zero airflow and having zero issues. For 50W per cob, these heatsinks are just the right size.
Thanks a bunch, Dan. You have a good product that I happily recommend.
Next up will be my 3x2x3 build for my 4x4 veg tent.