Features - Color: Green. - Size: 17 x 9 x 4.2 cm/6.7 x 3.5 x 1.7 inch - Material: PVC. - Stable performance: Built-in industrial microcontroller for stable operation in cold, high temperature and humid environments. - The 12V/24V voltage is automatically recognized and intelligent, providing more convenience for your life. - Large LCD screen: ensures easy and intuitive operation. - Dual USB output: Easily connect to your phone for fast, powerful charging of your phone. - Comprehensive protection: Provides overcharge, overdischarge, overload protection, and short circuit and reverse connection protection. Specification - Max charging current: 30A. - Max voltage: 50V. - Working voltage: 12V/24V. - Charging mode: PWM. - Working temperature: -35-60 C. - Waterproof: IP32.