Feature: 1. With multiple protection functions of short circuit, open circuit, reverse and overload, all‑round protection circuit. 2. When the battery voltage drops below 8V, the solar controller will automatically shut down to protect the battery. 3. With 3‑stage PWM charging management, effectively improving system efficiency and extending battery life. 4. LCD display can help to clearly display status and data, easily switch modes and parameter settings. 5. Easy to install and operate, dual USB charging mode has little interference, suitable for home or industry. Specification: Item Type: Smart Charge Controller Material: ABS Model: WBL1210 Uses: Suitable for home, industry, commerce, etc. Rated Voltage: 12/24V Maximum Photovoltaic Voltage: 50V 10A Maximum Photovoltaic Output Power: 130W (12V) 260W (24V) 20A Maximum Photovoltaic Output Power: 260W (12V) 520W (24V) 30A Maximum Photovoltaic Output Power: 390W (12V) 780W (24V) USB Output: 2 USB outputs, 5V/2.5A (maximum) Standby Current: <10mA Working Temperature: -35-60℃. Package List: 1 x Smart Charge Controller1 x User Manual Note: The charge controller is only suitable for open type/AGM/gel type acid batteries, not suitable for nickel metal hydride, lithium, lithium ion or other batteries.