The ToppeLift uses 4 electric worm drive actuators to raise your topper up 17.5 inches. The system runs directly off of your vehicles battery, fully raises in about 30 seconds and draws less then 12 amps max. The Camper Package attaches VIA velcro and can easily be attached or removed when not in use. The Camper Package can also stay attached while traveling making for a quick set up when you are ready to rest your head. Come and Check it Out!