By installing GateGuard 21S Swing Gate Opener you can easily automate your gates and access them with the help remote controls or keypads. The kit includes everything that would need to automate your gates. The steel actuator is designed to handle heavy gates, the adjustable brackets can fit into any gates and the mounting brackets required no welding. GateGuard 21 Single Opener is an AC/DC voltage system and can be powered from both 24V DC and 110V AC.