Several LED projects i've seen end up creating a 'diffuser lens' by the simple expedient of running an ultra-fine sandpaper across the lens and making it slightly opaque. I've also seen similar done with a layer of 'frosted' lens tape.
What I don't know is how well that would work for headlights-would they still illuminate the road properly?
I love those LED lights in the Link-but are they legal in the US yet?
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