Click to expand Tap to zoom Whelen UHF2150A Bi-Directional Headlight WigWag Flasher by Whelen Engineering $57.85 | / SKU UHF2150A 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Description Description Two outlet 162 watts per outlet Headlight/Grille light flasher in a compact molded poly-carbonate housing with external mounting flanges For use on positive or negative headlight switching Solid-state controlled relay output Four flash patterns