adapt to the environment temperature: -40 to +85

Waterproof and dust proof and dust, ABS flame retardant plastic, epoxy resin package.

Protection function: Over-current protection, over-voltage protection, short circuit protection.

input: red (+) black (-), output: yellow line (+) black (-)

The applicable voltage range of appliances: car alarm, radio, walkie talkie, motor, audio, navigation, monitoring, vehicle mounted LED display screen, air conditioning, electric fan, solar energy, photovoltaic energy, DVD, LED lights, motors, pumps, and industrial electrical equipment and so on.

Supports an external USB DC plug.

Welcome message customization.