LED Garage / Shop Lights?

I recently had four UV lights in my garage replaced with LED units from SAMS club.

They are more focused than the old UV lights. They are brighter in the area directly below them but make a shadow as you go out away from the light to the walls

They did make the electric bill go down a bit. I know for a fact LEDs reduce the electric bill because I proved that around Christmas last year when I replaced all my Christmas lights with LEDs.
I just got around to reading these posts. Question, can the lead bulbs be mixed w/ the traditional 4 ft. flourecent ?