PowerAlley Lite Baseball Pitching Machine The PowerAlley Lite-Ball Pitching Machine from Heater Sports pitches fastballs, grounders, and pop-flys. The PowerAlley Lite-Ball Pitching Machine from Heater Sports pitches fastballs, grounders, and pop-flys. The powerful A/C motor throws soft lite-balls at 40 miles per hour and lite-balls at 60 miles per hour. With a fully enclosed wheel the PowerAlley is not only the least expensive pitching machine on the market but it is also the safest. Plug the PowerAlley into any standard wall outlet for hours of hitting practice.