Signal Dynamics 01015 Plug and Play Diamond Star Headlight Modulator

Modulator pulses headlight for extra visibility during daylight hours. Pulses only during daylight hours thanks to a built-in photocell. Choice of two settingsboth are DOT compliant. Uses bikes high/low beam switch. Features Heads Up Alert; just press the horn and the headlight will pulse for three seconds. Switches from high-beam or low-beam to the other in case of bulb burnout. Measures 2 1/4in. L x 1 5/8in. W x 5/8in. H. Surge protected. Wiring harness required and available separately. Made in the USA.