Specifications: Material: Plastic+Metal Product Color: Black LED Indicator light color: Blue/Red/Green Over-heated,over-current,over-charging protection, charging will be automatically stop when battery is full, easy to use and install Input Voltage: DC 12 - 24V Voltmeter Measure Voltage: DC 8-24V USB Output : DC 5V-6.5V 3A, 6.5V-9V...