Check the listing for details. Micro Water Turbine Generator Hydroelectric Power 1/2" 12V Micro Changeing Tool. Condition: New. Listed at 18.99 USD. Size: 1/2-12V Technical Parameters: between the wire resistance 10.5 ± 0.5Ω Insulation resistance 10MΩ (DC100 ) Axial clearance 0.2-1.0mm Mechanical noise ≤55dB Output voltage :12V DC Amount of the Generator : 90g around Generator life : ≥3000h Output characteristics: the output voltage with no voltage regulator is proportional to the water pressure. Pressure: Max pressure 0.6Mpa outlet closed; Outlet opening max pressure 1.2Mpa; Start pressure 0.05Mpa Charging: Can give the 12V radio power, charging, power supply to the 10W LED lights, the maximum charge current 220mA. principium: Micro hydro generator, the potential energy conversion of the water into electrical energy mechanical equipment. Appearance: generator surface clean , no rust, no scratches when significant , solid structure Package Include: 1 x DC 12V DC generator 10W micro-hydro water turbine generator water F LED lights