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.
