Features: Automatically detects 12V/24V systems with advanced MPPT technology, boosting solar charging efficiency by 30% while eliminating manual voltages adjustments for seamless compatibility across . plastic housing with aluminum alloy heat sink ensures weather resistant , featuring overload/short circuit for year round outdoor in harsh environments. camping enthusiasts, and users seeking solar energy management without professional installation expertise. Optimizes power harvest for residential rooftop arrays, solar systems, and backup units during or remote adventures. Streamlines solar setup through tool installation and automatic voltages recognition, delivering with IP65 rateds against dust/water ingress. Specifications: Shell materials: Aluminum alloy Battery voltages: 12V/24V adaptive Noloads loss: ≤0.03A Maximums solar input voltages: 50V Rateds load current: 20A Maximums solar input power: 120W/12V, 240W/24V direct current OUT: Same battery voltages 3A USB: 5V 2A Working temperature: -10°C~+65°C Net weight: about 240g Product size 14.1x9.6x4.0CM Package Includes: Solar charging controller × 1 note: Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!