Check the listing for details. BY/ Low Speed 800W 12v 24v 48v 3 Phase Permanent Magnet Generator AC Alternator. Color: White, Condition: New. Listed at 461.89 USD. FEATURES: Our disc coreless PMG have advantage in low Rated speed, Low starting wind speed, Small volume, Energy Small, Light weight, Compact structure,High efficiency etc. ① Coreless, anhysteresis, slotless, have low starting torque. ② No iron loss, have high efficiency ③ Adopt unique coreless precision winding technology design precision coil ④ Adopt the rare earth permanent magnet, which is multipole, mean gap, high power density and high output power. ⑤ Low speed direct driving, no torque fluctuations ⑥ Compact structure, high ratio of power to volume ⑦ No iron loss, low calorific value,small temperature rise ⑧ Simple structure, easy to install ⑨ The brushless structure, free maintenance PARAMETER DATA Rated power 800w Rated speed 350rpm Rated voltage 12V/24V/48V Rated Current 45/22 Gen. Diameter 210mm Gen. Length 160mm Gen. Weight 7.5kg Shaft. Diameter 28mm Efficiency >85% Resistance (Line-Line) - Winding type Y Insulation Resistance 100Mohm Min(500V DC) Leakage level