Bonjour
You said you want to run 5 cxb3590 @1050mA...an hlg-240-1050b run 5 cxb3590 @1050mA...!???
So what is the problem?
I don't understand?
A 1050mA driver will drive your cxb @1050 so at 61% with a 3500ºk CD and it is the perfect driver for that unless you prefer a parallel wiring!
Series...