Wiring LEDs in parallel
That kind of COB LEDs have power control chip on board, it has even overheating protection. I am using similar, 50W, 120VAC without any PS, just straight connection. 50W is a lot of heat, you need good heatsink. And yes, you can connect them in parallel, total current will be sum of currents. Switches to each LED will be OK, just choose proper voltage and current.