... and Vibration Proofed Input reverse polarity protection No Arc Superheating Cutback DCIS series isolated DC/DC converter applies advanced technology ... , which is suitable for all kinds of condition.Input reverse polarity protection: Shut down, auto–reset.Water Proofed Fuse ... 65°C, ensure the continuous power for your car.Input Reverse Polarity: Electronic protection, auto–reset.Input Low Protection: ...