<B>Wig Wag Headlight/Grille Light Flasher Review</b><P>http://tinyurl.com/pvtyquo <P><P> Wig Wag Headlight/Grille Light Flasher <P>Compact molded polycarbonate housing<P>External mounting flanges.<P>2 or 4 headlight system on any vehicle with a 12 VDC negative ground system<P>Constant flash rate of 1.9 f.p.s.<P>Modulates high beams at 3.6 f.p.s.<P>