The JS-B0 solar charging controller is a PWM type device launched by Demuda, with specifications of 10A/20A/30A, suitable for 12V/24V off grid systems and three mainstream batteries. Maximum photovoltaic input of 3000W, 50V, dual USB 5V/2A output, with all-round safety protection, matched with LCD display screen. The product is resistant to -35 ℃~+60 ℃ environment, IP32 waterproof, and comes with a 1-year warranty. Users have provided reliable quality feedback and professional service, making it a practical solar energy supporting equipment.