1. Weight: (no more than 60 grams) Most headlamps weigh between 50 and 100 grams. If you use disposable batteries to provide power, you must carry enough spare batteries for long-distance hiking.
2. Brightness: (at least 30 lumens) Lumen is a standard unit of measurement, equivalent to the amount of light emitted by a candle in one second.
Lumens are also used to measure the amount of light emitted by headlights. The higher the lumens, the more light the headlight emits. A 30-lumen headlamp is enough.
3. Beam distance: (at least 10M) Beam distance refers to the illuminating distance of the light. The beam distance of the headlight can vary from as low as 10 meters to as high as 200 meters. However, today's standard maximum beam distances offered by rechargeable and disposable battery headlamps are between 50 and 100 meters.
4. Bright mode setting: (spotlight, floodlight, warning light) Another important feature of the headlight is its adjustable beam setting.
There are a variety of options to meet all your night lighting needs. .
5. Waterproof: (at least 4+ IPX rating) Look for the number from 0 to 8 after "IPX" in the product description: IPX0 means not waterproof at all IPX4 means it can handle splashing water IPX8 means it can be fully submerged in water .
6. Battery life: (recommended: more than 2 hours in high brightness mode, and more than 40 hours in low brightness mode) Some high-power headlights will quickly drain the battery power. If you plan to travel a backpack for a few days, you must consider this a little.