Wiring Cxb3590 to a driver

Was thinking hlg185-c1400a or hlg185-c1400b.. Not sure whats the difference can you tell me? And 2 drivers with 4 cobs on each
The thing I am confused about is the b driver looks like it has 2 cords coming out of one side and not sure which type or wire to use to wire the cobs

Not a good electrician lol most I did was make an extension cord lol
 
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