The E-S 300 Estate Swing Classic Single Swing Gate Opener features a design that has endured for over 30 years combined with advanced electronics to eliminate the necessity of programming. It supports gates up to 12' in length or 600 lbs in weight per leaf, and gate materials of wood, steel, aluminum, vinyl, chain link, and more. Other Specs: Gate Post or Column Size (pull to open design) - Maximum 4"x4" or gate mounted 2" from rear face of a column (the side facing the property). Push to Open - Yes (no additional bracket necessary); setback does not apply to push to open. Power - Low Voltage Transformer (included; 24V DC system) and Backup Batteries (optional; not included). Solar Compatible - No; must be within 200' of power source. Working Temperature: -4 to 131 F. Cycles per Hour - Continuous Duty; approximately 75.