Features 1. Dual USB output, automatically saves user-set parameters and prevents data loss during power interruptions. Compatible with charging two mobile phones, tablets, and other 5V-powered devices via solar power. 2. Intelligent safety protection with multiple functions including over-current protection, short-circuit protection, reverse polarity protection, low-voltage disconnect, overcharge protection, and over-temperature protection for stable system performance. 3. LCD display provides clear status and data readings, with easy mode switching and parameter configuration, suitable for home, industrial, and commercial applications. 4. Supports charging of lead-acid batteries, ternary lithium batteries, and lithium iron phosphate batteries. USB output: 5V/3A. System voltage: 12V/24V auto-detect. 5. Constructed with high-strength plastic housing. Features intuitive digital display, time setting options, and one-button operation for ease of use. Specification Item Type: Solar Charge Controller Material: Plastic Color: Black System Voltage: 12V/24V (auto-identification) Maximum Photovoltaic Voltage: 23V at 12V battery, 46V at 24V battery Rechargeable Battery Type: Lead-acid battery / Lithium-ion battery (ternary lithium) / Lithium iron phosphate battery USB Output: 2 USB ports, max 5V/3A Standby Current: