Available in standard-power 55W and higher-powered 100W versions 12V; 55W lamps meet DOT and SAE specifications for street use; 100W lamps are a special; higher-wattage version of the H755 (100W versus 55) and are for off-road use Superwhite lamps use a proprietary superwhite coating to produce a whiter; brighter light True xenon headlamps utilize real xenon gas to increase light output by 30 percent