HighTechSpeed XARC-R-BL X-Arc Signals Kit - Dual Intensity Red with Black Anodize Housing Dual intensity red - high for brake light and low for running light Only 0.875" in diameter and produce more than 400 lumens of light per side CNC machined from solid aluminum, then either triple chrome plated or anodized, depending on the desired finish. Mount with a standard 5/16" bolt (wires through center). The mounting stud is removable, allowing the X-Arc signal to be flush-mounted directly to the bodywork. Microcontroller chip constantly monitors the brightness and temperature Kit includes X-Arc Signal pair, Mounting hardware, and Easy install instructions. Made in USA and comes with one-year warranty.