bulbs I had were designed to handle the old style bowl and only fiited one way to give a flat beam.
Yep, same here. The LED bulbs I put in the Landy give the exact same pattern as the old H4s but with a more sharply-defined cut off, and although they are a bit brighter, it's the colour temperature that gives the real benefit in my view. I am sure the more modern full LED replacements would be even better but I like the classic look of the old headlight lenses. It's not like I do much night driving anyway and I'm quite happy to slow down a bit when I do.
