All the lights here use one or more LEDs to provide their light source. Generally, the more LEDs, the more power. But because LEDs can have di!erent power outputs – or be ‘pushed’ to varying outputs – that’s not a rock-solid rule.
This turns the light o! and toggles it through its various modes. Some are backlit, others change colour to show power level or remaining charge. ‘Strobe’ or ‘o!’ modes in the switch sequence can be really annoying/ dangerous. Remote switches are useful for changing modes without taking your hands o! the bar.
The amount of info available from lights varies dramatically, from a frankly useless “I’m going to die completely in five minutes” red warning light, through ‘tra"c light’ run time indicators to full digital charge/charging and mode readouts.
Mounts need to fit your handlebar/helmet (35mm bar options are still limited). They also need to be solidly secure, because rattle or wobble can be really confusing/distracting.
Batteries vary in size, shape and capacity. Hardshell ones can be harder to find space for but generally slide around and scratch frames less than bag batteries.