1. How many lumens do you need
Lumen indicates how much light a head torch emits. More lumens mean more light, but also a battery that drains faster.
- For the tent, cabin and walking the dog 100–200 lm is enough. More light in a campsite tends to dazzle others.
- Walking on a hiking trail in the dark: 200–400 lm. At junctions and for waymarks, you will appreciate a stronger mode for a few seconds.
- Running in the forest and off-road: 400–700 lm. When running, you look further ahead and need to see roots and rocks in good time.
- Off-road cycling: a head torch supplements the light on the handlebars, it doesn't replace it. It shines where you look, even into corners.
The “maximum power” figure is only valid at the beginning. Most head torches reduce power after a while so they don't overheat and save battery. When choosing, look at the output in the medium mode, which is the one you will actually use.
2. Battery life: what the hours on the box mean
Manufacturers who adhere to the ANSI/NEMA FL 1 standard measure battery life until the light drops to 10% of the initial power. So for the last few hours, the head torch only shines dimly. When choosing, therefore look at the battery life in the mode you want to use, not the longest number on the packaging.
- Constant lighting (regulated power) maintains the same light as long as the battery lasts, and then drops the output abruptly. Good for running and cycling.
- Gradual dimming (unregulated) shines less and less from the start. Enough for camping.
- Reactive mode in head torches that have it adjusts the output according to where you look: dimly on a map, brightly into the distance. The battery lasts longer.
3. Disposable batteries or a rechargeable battery
This is the most common question from forums, especially before winter.
- A USB rechargeable battery is convenient and cheap to run. But it loses capacity in the cold, so expect a shorter battery life on a winter hike.
- Alkaline AA/AAA batteries can be bought anywhere, but they perform worst in the cold.
- Lithium AA/AAA batteries handle the cold best and are lighter. They are suitable as a backup for winter and for multi-day trips.
- Hybrid head torches take their own rechargeable battery as well as AA/AAA batteries. When the rechargeable battery runs out, just insert batteries from your pocket.
Tip for winter: a head torch with the battery at the back of the strap, or with a battery pack on a cable that you put under your jacket, will last longer in the cold. Keep spare batteries in a pocket close to your body.
4. For running: stability and weight
- A head torch shouldn't bounce around when running. Lightweight models up to ~100 g hold on a single strap. Heavier powerful head torches also need an over-head strap.
- A battery at the back of the strap distributes the weight, so the head torch doesn't press against your forehead.
- Test the controls with gloves on. A large button and a lock against accidental switching on in the backpack are worth it.
- Running in the dark also means being seen: a red rear light on the head torch or reflective elements on your clothing.
5. Water, rain and snow
Water resistance is indicated by the IP rating.
- IP X4 means resistance to splashing water. This is usually enough for rain and snow.
- IP X7 can withstand brief submersion, IP X8 prolonged submersion. Suitable for water sports, canyons and truly wet conditions.
6. Red light and other modes
- Red light won't dazzle others in the tent or cabin and preserves your night vision. It's great for map reading and stargazing.
- Flashing should only be used in an emergency or as a signal, not for lighting the way.
- A lock protects against it turning on in your backpack. Without it, you will often find out on the spot that the battery is empty. Therefore, turn the lock on every time you pack the head torch.
7. Kids' head torch
For kids, choose a head torch with lower power, simple controls and a soft strap that can be tightened for a small head. A child doesn't need power above 100 lm and a strong light will easily dazzle their friend.
Summary
- 100–200 lm is enough for camping, 200–400 lm for walking, 400–700 lm for off-road running.
- Watch the battery life in the mode you'll be using.
- For winter, choose hybrid power or lithium batteries and carry spares close to your body.
- For running, choose a lightweight head torch, or one with the battery at the back of the strap.
You can find head torches of all categories in the Head torches section.
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