The Euros will give a little more light on high-beam than the DOT lights. The fog lamps with clear lenses/bulbs are the bigger help for deer-spotting, good wide white beam. On low-beam the DOT/US lights aren't much worse than the Euros, the biggest difference for the low-beam is less glare for oncoming traffic and less stray light upward for glare in fog/snow (the reason our lights are illegal in most of the world).

My experience is with Bosch and Hella Euros, I haven't had the aftermarket brands like these but expect that they're pretty much the same performance.

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Gone to the dark side

- Jeff