These flashers are designed for heavy-duty long-life operation. Whelen can provide you with the reliable solid-state products you require. UHF2150A - Two outlet, 162 watts per outlet Headlight/Grille light flasher in a compact molded polycarbonate housing with external mounting flanges. For use on positive or negative headlight switching. Solid-state controlled relay output. Four flash patterns. Dimensions: 3" (76mm) H x 1-1/2" (38mm) D x 4-3/16" (108mm) W.