These lights have a unique lens shape and patented Linear-LEDs designedreflector assembly, M Series lightheads are completely illuminated forunmatched high intensity warning and low current consumption. SAE Class 1 Certified (warning) Available with Clear or color lenses Split color models have 64 Scan-Lock flash patterns Available in warning and scene light models Choose flash patterns from solid, left/right, top/bottom, in/out, or diagonal sequencing Brake/tail/turn, turn, and back-up lights meet applicable SAE requirements Warning lights with internal flasher have sync and low power functions Hard-coated lenses minimize environmental damage from sand, sun, salt, and road chemicals Surface mounts via two screws for easy installation A variety of mounting brackets and optional Chrome or Black flanges are available Multiple Scan-LockT flash patterns, many being California Title XIII compliant. Meets KKK-1822F, NFPA 1901, NFPA 1917, SAE, and EC65 specifications Size with flange: 7-5/8″L x 3-3/8″H x 1-3/8″D Five-Year Warranty