As promised, here's a photo of the lighting from the LED "bulb" vs a standard halogen.
Bear in mind, this car takes two separate bulbs for high and low beams. Four bulbs all together. My point is, because the low beam bulb shown here is dedicated for low only, it's easier to deal with the optics when trying to get the beam pattern right. I would not expect nearly as good a beam pattern in an LED "bulb" that provides both high and low beam.
Each of these "bulbs" is rated 20W and 2500 lumens. That's' vs. 55W and 1000 lumens for standard halogens. The added brightness is due to the fact that LEDs are a much more efficient producer of light than halogens.