Easy installation and maintenance. Compatible with a wide range of brushless generators. Ensures smooth and stable voltage output. Enhance your generator's performance with the AVR R438, a top-tier automatic voltage regulator designed specifically for brushless type generators. This essential accessory ensures your genset operates with optimal stability and efficiency, providing reliable power output under various conditions. construction for long-lasting reliability., Weight: 1.4550509292 pounds, Manufacturer: Wesafrae