I have ordered a sample of 2828 COBs for CRI testing and I ordered more than I actually needed. So I will let some of them find a new home, if you are interested.
Stats:
Voltage: 34-38v
Amperage: 1200-2400mA
Efficiency: ~100lm/w @40w (1.2A), ~80lm/w @80w (2.4A).
CRI: R9080, slightly above B.B.L.
Output at 40w: ~4000lm
Output at 80w: ~7200lm
I will call these: 2828-35k-40-01 / 2828-50k-40-01 for 3500k and 5000k, respectively.
I have up to 20 for each CCT available, this is a limited run and I do not have plan for more of these (at least for now). Ask me about the availability first.
Pricing is $8.5/ea, fees included.
Shipping -- same as https://budgetlightforum.com/t/-/58510
Test & Endorsement by Maukka:
Comparison between fridge light (top/left) and the 5000k version (bottom/right) by Maukka
"Sometimes I forget it on because I think it's the sun lighting up the room"