Dion
Active member
Which two configurations you mean? Light output at 25 and 50W or the other driver?
Only difference I see is total power of the 240H-C1400 driver, which consumes 250W, so good for up to 5 cobs of 36V(5x 50W).
The lower Watts per cob increases efficency of course, but remain same for 36 or 72V if they have same watts.
If I would be building a light now, I'd get the C1750 or C2100 drivers for my 36V cobs, I prefer higher light intensity over top electrical efficency.
C1750 with cxb3590= eff of cxb3070@1400mA