Abrams Wig Wag Headlight/Grille Light Flasher Compact molded polycarbonate housing 2 or 4 headlight system on any vehicle with a 12 VDC negative ground system Constant flash rate of 1.9 f.p.s. - Modulates high beams at 3.6 f.p.s. Power: 12V DC - Not compatible with Dodge Dakota or Durango 1999 or newer. 5 Year Hassle-Free Warranty - Lifetime Customer Support!