How we test

The helmet lights on test are all designed to provide additional light when mated to a bar light, which means we tested all the helmet lights with the same bar light and did multiple laps round a short 20-minute test loop. We also ran the bar lights round the same loop the same number of times and toggled to the lower powered settings on the climbs and flatter sections. We did some basic burn time tests and obviously we did shots of the beam patterns to see how well each illuminated a fixed scene.