The SLMINI is Nova's innovative LED warning signal in the SMT LED Series. The SLMINI contains 40 wide-angle, high intensity LEDs. Completely self-contained, the SLMINI features 8 flash patterns and a state-of-the-art random pattern selection mode. A single wire pattern selection scheme is standard for easy hookup. The SLMINI SURFACE MOUNTS directly to the truck body with only two screws and installs easily with a three-wire hookup - no external power supply is required. Features: 40 High intensity LED's Self-Contained, no power supply required Extremely thin SMT design: 0.343" THICK Waterproof design Random Technology standard 8 Flash patterns, including Random Single wire pattern selection Available in Amber and Red Simple 3 wire hookup Low current drain Reverse polarity protection Specifications: MODEL: SLMINI Input Voltage: 12.8 Vdc Input Current: 0.2 Amps Typical, 0.5 Amps Max Flash Patterns: 8 Length: 3.8", Width: 1.9", Thickness: 0.35" 2 year Warranty