If you're asking what drives the blade on the front mount like you have pictured, it's hyrdaulic drive. Personally, I like my PTO drive. More power from pto than hydraulic orbit motors. Hydraulic drive would take a really good pump and a really good hyd oil cooler. I don't know right off what an "LS" is, but if it's a small tractor I'd be leary about trying to hang something like that on the FEL and powering it w/hyd. Skid steers (like pictured) usually have a pump and cooler that would handle it.
my 2 cents