1. 6 Inch Linear Actuator Input Voltage: 12V DC Maximum Load: 330lbs (1500N) Stroke length: 6 inches (150mm) Travel Speed: 0.22 in/sec (5.7 mm/s) Duty Cycle: 25% Starting Current (No-Load): 0.8A Maximum Current: 5A Limit Switches: Pre-installed Gears: Lubricated Metal Gears Weather Resistance: IP54 Rated Color: Silver 2. 12 Inch Linear Actuator Input Voltage: 12VDC Maximum Load: 330lbs (1500N) Stroke length: 12 inches (300mm) Travel Speed: 0.22 in/sec (5.7 mm/s) Duty Cycle: 25% Starting Current (No-Load): 0.8A Maximum Current: 5A Limit Switches: Pre-installed Gears: Lubricated Metal Gears Weather Resistance: IP54 Rated Color: Silver 3. Dual Axis Remote Controller Nominal output: 12/24V Max load current: 6A Waterproof: IP65 Operating temperature: -20~+60 The control precision: 1.5 degrees Flat the solar panel during nighttime or rainy day Package included: 12V 6″ & 12″ Stroke Linear actuator Dual Axis controller with Remote Complete Mounting Kits: Solar Panel Mounting Arms; Main Tracker Mount; Fasteners; Main Poles for Solar Panel Mount