I had an email from a reader about a month ago enquiring about an issue he had with his new Smart Lunar 35 lux light interfering with his wireless cycle computer, a Sigma 1009 STS. Unfortunately, it’s quite a common problem that LED bike lights and other electrical equipment such as electric bike motors can make wireless bike computers go haywire.
Whenever I read about the latest bike lights, I see the main criterion most people use to judge them is the brightness, whether it be the number of lumens, lux, glow-worm-power or whatever unit happens to be used by the particular manufacturer.
Of course brightness is a very important specification but I would urge a little caution before playing the numbers game and simply plumping for the most awesome luminary firepower you can get your mitts on. In particular if your primary cycling habitat is the road or cycle path which you share with other road users I would suggest you really don’t need a light with more than a few hundred lumens and anything brighter could be dangerous and actually illegal if not used sensibly. Continue reading “Is the brightest bike light best for you?”