Ultimate Safety: The trailer breakaway switch kit system is designed to activate the brake of the trailer when it has disconnected from the vehicle. Ultimate Strong Casing: This strengthened plastic case is all weatherproof and is built to offer ultimate protection for the charger inside. Reliable Power: The brakes breakaway kit has an easy to operate button to indicate the level of charge with LED indicator to ensure reliable charging. Kindly Note: There is input voltage, the yellow light is on normally, and when the test button is pressed, it lights up green when fully charged. Ultra Convenience: This trailer breakaway switch kit system is equipped with indicator light, through which you could gain a quick understanding of the status of the system. Easy to Install: The brakes breakaway kit comes with pre-wired, colour-coded cables for battery (black), brakes (blue) & ground (white). The battery box & the switch can be easily installed with screws / rivets. You can mount the brakes breakaway kit almost anywhere on trailer, but mostly on the frame for convenience. A 1-year warranty serves as quality assurance of the trailer brakes breakaway. FIERYRED LED Test Trailer Brakes Breakaway Kit with Battery and Switch, Side Load Break-Away Controller System, Built in 12V 5AMP Charger