Klarus
Klarus HM1
- Weight 2.47 oz
- Runtime 70 hours low
- Max Output 440 lumens
- Water Resistance IPX6
A light, weather-sealed 440-lumen runner with long runtime and hands-free control.
A 440-lumen headlamp with a light body and an IPX6 rating is the balance we want for night running, and the Klarus HM1 gets all three right. The beam is strong enough to read a rooty path, the body is light enough that the band does not need to be cranked down, and the sealing makes heavy rain a non-event. The 440 lumens are consistent rather than a brief turbo burst, and the 60-degree tilt lets us aim the light from our feet to the trail ahead without moving our whole head.
The controls are unusually considered for a running light. The HM1 defaults to medium, which is where we spent most of our miles, and a long press shuts it off without cycling through every mode. The motion sensor is genuinely useful at a gate, a map check, or when you need light now and your hands are full. Klarus also includes a spare headband and quotes a 2.5-hour charge; both are the kind of practical extras that keep a lamp in service instead of in a drawer.
The runtime figures need context: 70 hours is the low-mode claim, and the medium setting we used is closer to an eight-hour light. That is still enough for a week of evening runs or a long night out, but it is why the HM1 rewards a charging routine. For technical routes, doubtful weather, or runs that finish after dark, it is the one we reach for.
Bottom Line
The HM1 is our top pick for road and trail runners because it combines a 440-lumen beam, IPX6 sealing, and a light build with long low-mode runtime and hands-free control.
What We Like
- 440-lumen beam with consistent output
- IPX6 sealing for heavy rain
- Light body with long 70-hour low runtime
- Motion sensor and long-press shutoff
Worth Noting
- Built-in battery cannot be swapped mid-run