Feature: 1. Stable and High Efficiency: Using NdFeB permanent magnets and premium pure copper windings, the generator can generate high efficiency and stable power. 2. Aluminum Alloy Shell: The three phase AC permanent magnet generator adopts aluminum alloy shell with corrosion proof treatment, acid, alkali and salt resistance, has a longer service life. 3. Good Heat Dissipation: This permanent magnet generator has a specially designed rotor, which has a small resistance torsion when starting, and has a good cooling effect. 4. Gearless: Gearless permanent magnet electric motor generator, low rotating speed, and can be driven directly, energy saving, safe and reliable. 5. Easy Operation: The low speed rare earth permanent magnet generator is very simple to operate, and the three phase AC permanent magnet generator is safe, easy to maintain. Specification: Item Type: Three Phase Alternator Material: Aluminum Alloy Gross Weight: 3950g / 139.3oz Rated Power: 200W Product Size: Approx.15 x 13.5 x 16.5cm / 5.9 x 5.3 x 6.5in Rated Speed: 750 RPM Starting Torsion: < 0.1 Nm Magnetic Poles Number: level 12 Conversion Efficiency: ≥85% Working Temperature Rise: ≤70℃ Generator Type: Rare earth permanent magnet 3 phase alternator Main Shaft Material: carbon steel Magnetic Steel Material: rare earth Ndfeb material Lubrication Mode: add lubricating grease Insulation Class: H class. Package List: 1 x 3 Phase AC Permanent Magnet Generator