The GRANIT 64810853PL is an AKO Redyk A4-4,5/3,1J 12V electric fence energizer, designed for reliable animal containment. This powerful 12V unit features a 4.5J charging energy and 3.1J maximum discharge energy, delivering a robust 10,000V maximum output voltage and 9,000V no-load voltage. It supports theoretical fence lengths up to 90 km, or 10 km in heavy vegetation, making it suitable for a wide range of animals including cattle, sheep, goats, wild boar, deer, and wolves. The energizer consumes 250 mA and requires a minimum of 3 ground rods for optimal performance.