Brightsource has introduced their new LED headlight bulb conversions. Available in H4, H11, 9006 and 9005, they give up to 80% more light than halogen.
H4 Specs
5000K
28.8 watts low beam
42 watts high beam
H11 9006 9005 Specs
5000K
28 watts
$349 H4
$279 H11 9006 9005