Tubular Micro Hydropower Equipment 500kW 250rpm Bulb Turbine High Efficiency Runner A 500kW tubular micro hydropower equipment set featuring a bulb turbine for heads between 4 m and 14 m. The streamlined bulb reduces hydraulic loss and supports stable 90% efficiency operation. Key Features Bulb turbine for 4-14 m low head Peak efficiency up to 90% 500kW output at 250rpm Stainless steel runner with adjustable blades Integrated bulb generator and cooling Run-of-river and canal