Wolo (418-LED) Powerhouse Plus Roof Mount Air Horn With LED Lights - 12 Volt The next generation in air horns Built like no other horn, the chrome back cover has 28 Red super bright high intensity long life LEDs The LEDs can be used as a decorative marker light facing the rear of the vehicle or as a third brake light The dual metal chrome plated trumpets will dress up and make any truck, RV, van look great Installation is made easy with Wolos flexible inlet hose with brass fittings