1. High Temperature Warning Indicator in LCD display: When high temperature over 45 Celsius, the symbol of temperature will light up and show red color, plus audible alarm then shutdown. 2. Show Battery Power in LCD display: Green means full power, yellow means half level, and red means low power of your battery, you have to recharge the battery at once. 3. High Voltage warning in LCD display: (1) When high voltage warning, the symbol of v lights up(Red), battery level bar flickers, input voltage display shows 15V or more, plus audible alarm then shutdown. (2) When low voltage warning, the symbol of v lights up(Red), battery level bar flickers, input voltage display shows 10.5V or less, plus audible alarm then shutdown. 4. Power on/off indicator in LCD display: The symbol show green means working normal, show red and faulty means without output. 5. Over load & Short circuit in LCD display: When overload, the symbol ( like a balance scale) will light up(Red), load level bar flickers, no outputs audible alarm. When Short circuit warning, the symbol ( like a balance scale) will light up(Red), load level bar flickers, no outputs audible alarm. 6. Multi Protection: Built-in fuses, safe charging design and cooling fan prevents the car power converter from over-heat,saving power and energy.over voltage, overload, over-current, short circuiting, under-voltage, overheating, short circuit protection. 7. design &Top Quality: and compact, perfect for vacations, camping and work trips. It can be plugged into almost any 12V power output vehicle, providing charging anywhere. 8. 10A Automatic Solar Charge Controller MPPT with LCD Controller and Dual USB Power: 20W DC output: 12V/1.5A USB output: 5V/1.7A Colour:Photo Color Material:plastic+metal Package Contents: 1Xsolar panel 1X controller 4X lines 2X buckles 3X suction cups 1X English manual 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.