Specification: Model: 30A System Voltage: 12V/24V Weight: 437g DC output: 12V/24V USB Output: 2.4A *2 LVD: 11.0V,ADJ 9V-12V;x2/24V LVR: 12.6V ,ADJ 11V-13.5V;x2/24V Temperature Compensation: -24 mV /°C for 12V system;x2/24V Size: 175.9mmx139mmx40.1mm Material: Plastic Display: LCD Display Waterproof grade: IP32 Feature: 1. Controller Provided MPPT Maximum power point tracking Function,charging mode is PWM 2. The control parameters can be adjusted to a variety of battery parameters work,easy to adapt to different characteristics of the battery 3. Automatic ldentification System Voltage,12V/24V auto recognition 4. Humanized LCD display and double button operation of man-machine interface 5. Has a strong charge,constant current,floating three-MPPT intelligent control 6. Accurate temperature compensation, correcting the charging and discharging voltage automatically, improving the battery lifetime 7. Reliable over voltage protection, short circuit protection, over load protection, overcharge protection, over-discharge protection Note 1. 2. The product doesn’t have communication interface temporarily, other functions are similar with MPPT.