The M20388YCL is a low profile, 3M tape mount, surface mounted warning light. It features 6 LEDs behind a clear lens that light up amber. It has a built-in quad flash and complies with SAE J595 Class 2. It can also be set to steady-on mode and flashed via an external flasher module like M50910 (sold separately). It can be securely mounted with the attached 3M tape, and optional screws included. The security screw caps cover the screw hole as a theft deterrent and also to provide a smooth, finished look. It is 12/24VDC dual-voltage, features a polycarbonate lens & housing, and is backed by a 5-year warranty.