1.especially for garage door 2.power:800N 3.unique design. Garage door opener needed instruments when installing electric percussion drill,electric hand drill,herringbone ladder,adjustable spanner,fixed spanner,socket spanner,tape line.level feet,pliers,hammer,electroprobe,screwdrivers. technology parameterspower voltage output220VAC 50HZmotor24VDC 100Wfloodlight working time3Minworking ...