One of the Cycling Plus team has been using a Hi Power for years, so we can certainly vouch for the durability of this well designed, aluminium-bodied, one-watt light.
And that durability goes for the illumination too. Edinburgh claims a 20-hour run time at full power and up to 80 hours on reduced power, and we found that ours was still burning brightly after more than 15 hours.
That aluminium body is tough and the battery compartment is extremely well sealed against the elements.
Great for an urban commuter or as an extra for somebody riding on a more elaborate lighting setup.