Dual Axis Solar Tracker Complete Kit & 2PCS 18″ Linear Actuator & LCD Controller
Linear Actuator. About the Linear Actuators 2PCS 450mm/18″ Stroke DC 12V Linear Actuators. (one for North/South direction and one for East/West direction). Max Push Load. Max Pull Load. 4PCS Silver Mounting Brackets W/ 4PCS Bolts and 4PCS Cotter Pins for the linear actuators.