kermit_rr said:

Behave, you should know better!!
Even in complete darkness, which is extremely rare, you still see something once you're eyes have adjusted.
If you turn a dim/yellow torch on at night, you'll still be able to see things that aren't lit by the torch.
If you turn on a powerful torch, bright white beam, you'll see what's inside the beam as clear as day but you'll see frig all in the darkness.

That's assuming you're not half blind to start with

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Lol. But that is neither helpful nor relevant to car headlights. It’s simples… the better the headlights the more you will see.

Same is true with LED torches. And as I highlighted above, you can get different colour temps.

300bhp/ton said:

Lol. But that is neither helpful nor relevant to car headlights. It’s simples… the better the headlights the more you will see.

Same is true with LED torches. And as I highlighted above, you can get different colour temps.

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It's relevant because the brighter the light, the less you see out of the beam. The spread doesn't change. It's effectively tunnel vision

kermit_rr said:

It's relevant because the brighter the light, the less you see out of the beam. The spread doesn't change. It's effectively tunnel vision

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I would agree with that to a point. You do get tunnel vision with bright lights. But the spread and beam pattern on a headlight is such that actually it is long way away and not that relevant if it is is outside of the beam in the “dark” area. The only thing I have noticed with the trucklites I have just fitted is there is a much harder stop at the front edge of the beam than with a halogen. So the front edge has more of a divide rather than a slow fade to darkness.