[Compact and Portable]Improved charge controller, MPPT (Maximum Power Point Tracking) charge controller brings a to maximize the use of solar energy to charge the system, it is 25% smaller in size, but can capture up to 15%-30 % performance, can charge the battery without additional self-power consumption. High tracking efficiency up to 95%, compared to 65%-80% for charge controllers. Automatic detection of 12V DC system voltage. [Comprehensive protection to safety]Built-in internal protection system and intelligent 3-stage charging to protect your battery from overcharge, overdischarge, overvoltage, overload, short circuit, reverse polarity and overtemperature, and the battery is highly efficient, Safely charge to 100%. [Compatible with Multiple Batteries]Compatible with 12 volt batteries , Gel, Deep Cycle, Sealed, Lead Acid, Flooded and LiFePO4 lithium batteries. 3-Stage Smart Charging: Boost, Float and Equalize to get the most out of your solar energy. Great for deep cycle, , marine, automotive, and more. [Visual Monitoring & No Power Consumption] Equipped with a digital LCD display, visually monitor the working conditions of the solar panels and batteries. Powered directly by sunlight, can't drain the battery Please expose the solar panel to sunlight, make there is no shade or cloudy to get enough sunlight to activate the charge controller. [Temperature Compensation]Integrated thermal temperature sensor eliminates overcharging in hot climates and undercharging in cold climates. [Easy to Use]SAE connector can be quickly connected or disconnected, plug and play. Very functional and functional. IMPORTANT: This MPPT charge controller has standard polarity as shown in the user manual picture, if the solar panel does not match the charge controller, a polarity adapteris required. Check out our MPPT, with polarized adapter. Color: Black Material: plastic Package Contents: 1 x Solar Panel MPPT Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.