2 Pcs Generator: 1 Pcs 5V & 1 Pcs 80V Perfect for energy conversion of the water into electrical energy mechanical equipment Directly used to charge small battery, mobile phone, or power supply for LED lights, etc Output current: Max. greater than equal 220mA Line resistance: 10.5+/-0.5ohm; Insulation resistance: 10Mohm (DC100 megohmmeter) Closed outlet pressure: Max. 0.6Mpa Opened outlet pressure: Max. 1.2Mpa Starting water pressure: 0.05Mpa Axial clearance: 0.2-1.0mm Mechanical noise: less than equal 55dB Output characteristics: output voltage without the voltage regulator circuit is proportional to the water pressure Installation: standard household 1/2 inch water pipe (Outer diameter:20mm, inner diameter:13mm) voltage: 5V & 80V colour:Transparent + yellow Material:plastic size:About 8.8*5.8*3.9cm Package Contents: 2 * Generator Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.