Click to expand Tap to zoom Whelen M4 Series Linear Dual Color Super-LED® Surface Mount by Whelen Engineering $187.85 | / SKU M4DJ Red/Blue - $187.85 Red/White - $187.85 Blue/White - $187.85 Amber/White - $187.85 Red/Amber - $187.85 Blue/Amber - $187.85 Red/Blue Red/White Blue/White Amber/White Red/Amber Blue/Amber Color 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Features Specifications Features Brake/tail/turn, turn, and back-up lights meet applicable SAE requirements DUO models include DVI™ light patterns and our patented E Block™ technology Hard-coated lenses Surface mounts via two screws for easy installation A variety of mounting brackets and optional Chrome or Black flanges are available Can be mounted vertically or horizontally Housing allows easy mounting of M4 lightheads in the factory fog light openings of the 2015-2018 Chevy Tahoe and 2015-2018 Ford F-150 Specifications Flash Patterns: Single color: 159 Scan-Lock™ flash patternsDouble color: 64 Scan-Lock flash patternsCertifications:SAE Class 1 (warning)KKK-1822FNFPA 1901NFPA 1917SAEEC65 Five year warranty