1、MPPT Technology: Advanced maximum power point tracking (MPPT) technology is adopted by this controller, with tracking efficiency no less than 99% and charge conversion efficiency up to 96%. 2、Parameters Settable: Single string and double string lithium iron phosphate and ternary lithium batteries are applicable, check the model for better fit! 3、Remote Control Design: The new wireless remote control design of the controller allows you to modify controller parameters and read system information through handheld devices. 4、Automatic Operation: This controller can automatically adjust the load power according to the battery power, so as to maximize the working time of the battery. 5、Long Life Span: The shell of this controller is made of premium aluminum material, which is strong and sturdy, suitable for various outdoor weather conditions, you can take it with confidence! Item Type: Solar Charge Controller Material: Aluminum Maximum Solar Power: 260W 12V, 520W 24V Maximum Load Power: 100W (12V), 200W (24V) 1 x Solar Charge Controller 1 x Manual