Brightness
Typically, the higher the number of lumens, the brighter the light.
- A headlamp with a high lumens count will consume energy at a higher rate than one with a lower lumens number.
- Most headlamps offer several brightness levels like low, mid and high (max). Others may offer an emergency strobe or red-light mode for nighttime vision.
Consider the power source
- Lithium battery–powered headlamps are a good choice for cold-weather use, since lithium batteries outperform alkaline batteries in cold conditions.
- Rechargeable batteries can be used repeatedly but tend to lose power when sitting idle.
Understand headlamp beam type and distance
- Flood (or wide): This spreads the beam wider and is for general, close tasks like cooking dinner or reading.
- Spot (or focused or narrow). A tight beam for longer-distance viewing, such as navigating a trail at night.
- Flood and spot: Adjustable headlamps are the most versatile.
Read full article: How to Choose Headlamps
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