Do you understand the “lumen” that a lamp must know?

In the purchase of outdoor headlamps and camping lanterns often see the term “lumen”, do you understand it?

Lumens = Light Output. In simple terms, Lumens (denoted by lm) are a measure of the total amount of visible light (to the human eye) from a lamp or light source.

The most common outdoor camping light, headlamp or flashlight fixtures are LED lights, which use less energy and therefore have a lower watt-rating. This makes the watts we used to measure light bulb brightness no longer applicable, so manufacturers are switching to lumens.

Lumen, a physical unit describing the flux of light, is rated by “lm”, short for “lumen”. The higher the lumen value, the brighter the bulb. If you’re not sure about lumen numbers, this chart of incandescent to LED lights might give you a clue. That is, when you want an LED that can achieve the effect of a 100W incandescent lamp, choose a 16-20W LED and you’ll get about the same brightness.

In the outdoors, according to different types of activities generally need different lumen levels, you can refer to the following data: night camping: about 100 lumen night hiking, crossing (considering weather changes such as rain and fog) : 200~500 lumen about trail running or other night races: 500~1000 lumen professional night search and rescue: more than 1000 lumen

Be careful when using headlights outdoor  (especially those with high lumens), do not point them at human eyes. Too bright light can cause damage to human eyes.