2 x xhp50 driver.

I have 2 x xhp50s that I want to run parallel.

Im currently running it hapilly on Unbranded 5 A to 9.99 A Nominal Current Rating 25 V to 49.99 V DC Nominal Voltage Rating Industrial Power Supplies for sale | eBay

But I had a thought today.

With a proper LED driver, dont they run at a frequency to reduce heat/power consumption?

If so, what LED driver can handle 6A?

I cant seem to find any.

Thanks,

Ben