BTW,
These F-Series strips, gen.3 are a really good find, 72 SMD561c instead of just 48 and still $ 1 less!!!
Seems Samsung has a better yield on top bins, which would explain the cheaper price.
If they use the same binnings (S6), then 4 strips ( 4x72 = 288 ) can adequately replace a quantumboard / 54v ( 8x36 = 288 )
View attachment 3934177
I've made a quick comparision with Sammy's online calculator tool. Price for strips are from digikey(>25pcs) to replace 6 boards.
F-strips are in 8S9P configuration so at 700mA each 561c is running with ~10mA less or 77,8mA for a good 2,5lm/w plus in efficacy.
QB/54v have 18S16P config so at 1400mA each string gets 87,5mA.
Seems we have finally find a cheaper solution..
The only shit is, they are listed, but nowhere available, LOL!