Which head camera?

And today a white van overtakes and crushes me up against the curb forcing me to brake or avoid being knocked off. I reported this one to the Police but again it's really just my word against theirs. All very frustrating.

It's not a camera you want, it's a hammer.

*Long battery life, it's 1 hour commute into work and 1h30 home, so 2h30 absolute min would be good

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*Waterproof or waterproofable since it's to be used daily

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*Robust

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*Works well enough in low light

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*Small-ish, can mount on handlebars or helmet and ideally looks like a light

Mmmm . . . .
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*The cheaper the better, don't fancy paying out £300

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