Fully sealed waterproof housing made of UV stabilized high-temperature, high-impact thermoplastic. 12 volt heavy-duty motor with anti-rotation drive shaft. Knurled drive shaft and solid brass arm drive nut. Adjustable right or left self parking. Coast to park. Includes 5 amp fuse and holder (no on/off switch). RF shielded circuitry. Maximum current draw 5 amps. 3-Year Warranty.