Features 1、One-key setting, digital display, auto memory function. 2、Fully 3-stage PWM charge management. 3、Build-in short-circuit protections, open-circuit protections, reverse protections, over-load protections. 4、Dual mosfet reverse current protections, low heat productions. 5、With double USB ports charge. 6、★Build-in short-circuit protections, open-circuit protections, reverse protections, over-load protections. 7、★One-key setting, digital display, auto memory function. 8、★Dual mosfet reverse current protections, low heat productions. 9、★With double USB ports charge. Specification Suitable for solar green light, solar light boxes advertising board, solar insecticidal lights, housing solar generation system, marine solar generation system, outdoor survival solar generation system. Features: One-key setting, digital display, auto memory function. Fully 3-stage PWM charge management. Build-in short-circuit protections, open-circuit protections, reverse protections, over-load protections. Dual mosfet reverse current protections, low heat productions. With double USB ports charge. Specifications: Main color: black Main material: ABS Rated Voltage: 12V/24V AutoApplication: Solar System Controller Rated Current: 10A, 20A, 30A (optional) Max. PV Voltage: 50V Max. PV Input Power: 10A: 130W (12V) 260W (24V) 20A: 260W (12V) 520W (24V) 30A: 390W (12V) 780W (24V) Item size: 150 * 78 * 35mm / 5.9 * 3.1 * 1.4in Item weight: 155g / 5.5ounce Package size: 200 * 100 * 90mm / 7.9 * 3.9 * 3.5in Package weight: 155g / 5.5ounce Package list: 1 * Solar Panels Battery Charge Controller Package List 1 * Solar Panels Battery Charge Controller