Features and specifications: 1) Universal specifications 2) With mounting holes for free installation 3) With adjustable positioning hardware for easy installation and strong, quiet operation 4) Overload protection motor 5) Compatible with vehicle alarm systems 6) Many types of remotes available 7) Water-resistant remote 8) Key and door-button operation 9) Power supply: 12V DC 10) Module circuit current: 25mA max. 11) Control negative ground system 12) Remote lock/unlock timer: 0.2sec max. Inner packing: 1set/box Dimensions: 24.5 x 18.5 x 8.5cm N.W.: 1.3kg G.W.: 1.4kg Outer packing: 12sets/ctn Dimensions: 51 x 39 x 29cm N.W.: 14kg G.W.: 15kg