How about we start with the least expensive, widely used LA-400 system that is spec’d out for up to 100 cycles per day on gates weighing up to 550 Lbs. and measuring up to 16’ in length. Connected to a 120VAC source and built with a powerful high torque 24VDC motor, electronic limits, and with a newer Security Plus 2.0 receiver built in, this operator is the standard of the actuator arm systems. Built for master/slave (bi-part) operation it includes a bi-part delay option so that one door always opens last and closes first allowing the installation of a lock mechanism , timer to automatically close your gate as well as a full array of control inputs and outputs for optional devices such as loops and photocells. The system has a built in battery backup and comes with a two year warranty. If it is solar you want, the LA-412 has all of the same features that the LA-400 has, but it comes with an added EverCharge Standby Power Systems which is designed to deliver power where needed most when moving a gate but conserving power at all other times for optimum solar performance, two on board 12VDC 7 Amp/Hr batteries and a 10Watt solar cell. This system also comes with a 2 year warranty… Now if you are needing an operator for a larger, heavier gate then we jump up to the LA-500. This is the flagship of the series and labeled as a light commercial operator with enough power to move gates up to 18 feet in length and weighing up to 1600 Lbs. this beauty is also connected to a 120VAC source and built with a heavy duty 24VDC motor with soft start and stop, electronic limits, and with a newer Security Plus 2.0 receiver built in, this operator is the flagship of the actuator arm systems. As the LA-400 it is also built for master/slave (bi-part) operation it includes a bi-part delay option so that one door always opens last and closes first allowing the installation of a lock mechanism , timer to automatically close your gate as well as the on board, plug-in loop detector rack and inputs for all your safety and triggering device. The system has a built in battery backup with up to 14 days standby time and comes with a two year warranty. The kicker on the LA-500 is that it comes equipped with the latest MyQ Technology, this revolutionary system when paired with the Liftmaster 828LM internet gateway allows you to open, close and monitor your gate from anywhere in the world that you have internet access on your smart phone or tablet… So now you know the linear actuators that are available to you and the specifications of each system. Have questions regarding our products? Our technical sales and support team is standing by if needed, just give us a call at 1-800-730-8382 or contact us by e-mail as we are eager to assist you for all your access control equipment needs. Find the access control product you’re looking for today.