The solar controller has fashion and delicate appearance, lightweight, easy to install and remove. Practical dual USB interface. One button operation, intelligent breakdown, figure storage, safe and convenient. Backlit LCD screen, full-screen display settings, intuitive and clear data. Safe, fast and efficient, it's your very beautiful little assistant. Features: Compatible with 12V and 24V systems. Floating/LVD/LVR/Timer voltage adjustment. 4-stage charging, Boost, ABS, Equalization and Floating. Fashion and delicate appearance, lightweight, easy to install and remove. Backlit LCD screen, full screen display settings, intuitive and clear data. Automatic induction: Charging will automatically open or open when you set the timer to light and time modes. Featuring industrial-grade microprocessor and convenient dual USB interface, extend the life cycle of your cell. Comprehensive electronic protection: dual reverse current, overheat protection, under voltage discharge protection . Short circuit protection, open circuit protection, overload protection, overload protection, memory failure protection. Features: Model: 1 #: Z10 2 #: Z20 3 #: Z30 (optional) Color black Charge / discharge current: 1 #: 10A 2 #: 20A 3 #: 30A (optional) Batt Voltage: 12V/24V Auto Maximum solar input: cell 12V, highest 23V; Cell 24V, highest 46V Equalization: 14.4V Trickle charge: 13.7V (default, adjustable) Discharge stop: 10.7 V (default, adjustable) Discharge Reconnect: 12.6V (default, adjustable) Charging reconnection: 13V (default, adjustable) Open light voltage: 8V Solar Panel (Light Delay) Item Weight: 165g / 5.82 ounces Package weight: 190 g / 6.70 ounces Item size: 145 * 75 * 35mm / 5.71 * 2.95 * 1.38in Package size: 150 * 80 * 40mm / 5.91 * 3.15 * 1.57in Package List: 1 * Solar Controller 1 * Instruction Booklet instructions in English and Chinese