Features: Designs to fit a wide ranges of air cooled Diesels engines, ensuring multifunctional for various generator models. Make from Aluminum alloys shell, light weight, Enduring, delivering great performances. The rectifier provide stable voltages regulation, ensuring consistent power output for your generator. Comes with a fuses box, making installation easily and maintenance easily process. This voltages regulator is usually installed on the engine and used for batteries, rather than isolated shape regulated power Module, with high output stability. Specifications: Materials: Metal Style: 3 wire/4 wire Size: about 71x79mm/2.8x3.11inch Package Includes: 1pc Diesels Generator Stabilizer note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.