As it has been pointed out, the long time it takes to heat up the rare earth salts to the point that they vaporize and form a plasma is the deal breaker. A new technology that is emerging is LED headlights. Some of the new 12 watt LEDs in a big enough array and a fresnel lens should be awesome. Once they become commercially available its an all new ball game. LED's will work with Wig Wags just fine and in fact you could make it do Comet flashes or traditional. For the present, however, it will take Halogens and a quad harness with high wattage bulbs to work.