Our Equipment Editor tests the best head torches for mountain use and explains what to look for when investing. The post The ...

For general-purpose tasks like auto repair, a relatively low figure of around 70 lumens per square foot should be sufficient.

We observed this until the brightness got down to 110 lumens. Stopping the test, we clicked the mode/power button and discovered we could get back to high power mode at about 300 lumens.