Large screen: Solar charge controller has a built-in industrial microcontroller, a large LCD screen and all adjustable parameters. Complete 3-stage PWM charging management. Automatic protection: 40 A solar charge controller has built-in short circuit protection, idle protection, reverse connection protection and overload protection. Double Misfit reverse current protection, low heat generation ABS material: Solar charge regulator is made of high-quality ABS material, which is robust and durable and maximizes maximum durability, quality assurance and good performance. Stable performance: high-quality PWM solar battery charger with stable properties and high reliability. Very suitable for your car, professional functions and high reliability bring you an excellent experience. Functions: Built-in industrial microcontroller. Large LCD display, all adjustable parameters. Complete 3-stage PWM charge management. Built-in short circuit protection, idle protection, reverse protection, overload protection. Dual Mosfet reverse current protection, low heat generation. Specification: Type: Basic Version Size: 133 x 70 x 34mm Condition: 100% Brand New Material: ABS LCD screen display Two USB output Color: As picture show Options: 40A Battery voltage: 12V/24 Solar panel voltage: 12 V, 18 V solar panel, 24 V, 36 V solar panel. Trickle charging: 13.7V Discharge stop: 10.7V Discharge predischarge: 12.6V Self-consumption: