solar controller with compititive price and high quality. Features:1,Adopting ... and long life MOSFET as the main switch device of solar controller3,Adopting the cascade PWM charge main loop,reduced ... digital LED to show the two load control mode.5,Controller inside adopt the industrial chip, working well under cold, ... ≤5500mDimension140×90×27Mounting hole measurement132.5×70 SWL-10AP solar controller