Electronics are completely sealed in epoxy to resist damage caused by moisture, corrosion, shock, and vibration When properly mounted the lamps are designed to conform to the applicable requirements of FMVSS - 108 LEDs draw much less current and are rated at 100,000 hours Omni-Volt Lamp adheres directly to mounting surface through use of heavy-duty adhesive backing, with an easy-to-install, peel-off liner Gray and black brackets are only for rear exit wire lamp, (36140C), and are available if preferred over surface mounting Provides License Lamp solution that requires no mounting brackets or installation screws Hard wired with rear and side exit wires complete with .180 molded bullets Lifetime warranty Side mount options can be mounted without any mounting brackets or fasteners