These ACME wiring pass-throughs provide a simple and effective solution for safely routing power into your headlight housing while protecting it from moisture. Installation is straightforward, requiring just a 1-inch hole in the housing to secure the pass-throughs. Once in place, they allow wiring to pass through designated openings, ensuring a secure and dry power supply. What sets these pass-throughs apart is their durable silicone construction, which ensures flexibility and longevity. They can withstand extreme temperature variations, making them suitable for use in various conditions, from cold nights to hot desert trails. These pass-throughs are a reliable choice for maintaining a consistent power source for your lights while preventing water ingress.