Designed with a 120V AC (1/2HP equivalent) motor, this gear driven sliding gate opener provides exceptional starting torque and continuous operation, making it ideal for most applications. Opens gates up to 1500 lbs and up to 40 ft in length, 13 ft gear rack tracks is included (4 pcs Gear Racks, 3.3 Ft each, total: 13 Ft); if your gates more 13 ft in length just purchase an extra racks in " Gear Racks" section.