Color: As shown in the First image. Quantity and size : As shown in the title or description. Micro-hydro Generator, Dc Water Pump Features: Made of High-quality Material, Durable in Use Solid Structure, Low Noise, Stable Working Per For mance Smooth Surface Generator, No Rust, No Obvious Scratch. Compact Size, Lightweight, Easy to Install The Output Voltage of the Circuit Without a Voltage Regulator is Proportional to the Water Pressure Features:: Weight: 90g/3.2oz Voltage: 5V, 12V, 80V Maximum Output Voltage: 80V (1.2mpa) Maximum Output Current: 220mA (12V) Line to Line Resistance: 10.5 ± 0.5 Insulation Resistance: 10 M (DC100 Tramegger) Maximum Pressure of Closed Outlet: 0.6mpa Maximum Pressure of Open Outlet: 1.2mpa Starting Water Pressure: 0.05mpa Axial Clearance: 0.2-1.0mm Mechanical Noise: 55dB Generator Life: 3000h Package Included: 1 X Micro Generator