the beam from that energizer one is actually powerfull I use it as my main navigation light underground, and I have not had to change the batteries for ages, it lasted an 18 hour stint underground without a battery change.
@Guerillaphoto started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
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the beam from that energizer one is actually powerfull I use it as my main navigation light underground, and I have not had to change the batteries for ages, it lasted an 18 hour stint underground without a battery change.