http://www.chainreactioncycles.com/mobile/lezyne-macro-drive-800xl-loaded-front-light/rp-prod152254?gs=1&utm_source=google&utm_term=&utm_campaign=Chain%20Reaction-UK-PLA-PLA-All-MB-SE-Shopping%20QLB%20Manufacturer%20Mobile&utm_medium=base&utm_content=mkwid%7CsjObqYlTP_dm%7Cpcrid%7C161810673982%7Cpkw%7C%7Cpmt%7C%7Cprd%7C554625UK
Lezyne macro drive XL is pretty decent. I've got the 600.
I have the 450, battery life is reasonable only - would recommend something with more punch like the 600. It's O.K for being seen but can only just cut it on unlit roads.
@hanford 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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http://www.chainreactioncycles.com/mobile/lezyne-macro-drive-800xl-loaded-front-light/rp-prod152254?gs=1&utm_source=google&utm_term=&utm_campaign=Chain%20Reaction-UK-PLA-PLA-All-MB-SE-Shopping%20QLB%20Manufacturer%20Mobile&utm_medium=base&utm_content=mkwid%7CsjObqYlTP_dm%7Cpcrid%7C161810673982%7Cpkw%7C%7Cpmt%7C%7Cprd%7C554625UK
Lezyne macro drive XL is pretty decent. I've got the 600.