When the days get shorter, but you still want to continue your outdoor activities at night, you're bound to be looking for good lighting! A headlamp with the best compromise between power, lightness, and very good battery life.
You may be making a mistake by forgetting the first characteristic that should be taken into account in your choice: its reliability .
You can have the most powerful or lightest headlamp on the market, but if it breaks down in the middle of your outing, what's the point?


For this reason, at Go'Lum we have chosen not to compromise: powerful , lightweight trail and multisport headlamps, offering plenty of battery life and, above all, very reliable !
This reliability comes from a robust aluminum casing but also from the use of constant lighting !



What is constant lighting?


Constant lighting means that the lighting power (expressed in lumens) remains constant over a stated period of time. This period is limited by the battery life used.

Concretely, when we indicate on our Go'Lum, 7 hours of lighting at 300 lumens , you will really benefit from this autonomy , at this lighting power !
All the corresponding autonomy and power announced on our site are tested in the laboratory and observed in real conditions in the field !
Please note, once the 7 hours of lighting have elapsed, we have thought of you and you will not find yourself in the dark! Your Go'Lum flashes three times to indicate that you still have a few minutes with a lower light intensity to change the battery or to quickly get home.


Conversely, with standard lighting , the ANSI FL1 standard used by many brands "allows" the announcement of a lighting power measured after only 30 seconds , while this will decrease throughout the battery life , until it turns off when the battery is empty.



Taking the same example, for 7 hours of lighting advertised at 300 lumens, in standard lighting, you will benefit from 300 lumens for 30 seconds, then the light intensity will decrease until reaching 30 lumens (10% efficiency) after 7 hours of lighting , then will turn off a few minutes later once the lamp's reserve has been reached.


As you can see, not all power and associated autonomy are equal . It is very important to look at the lamp's lighting curve , in order to know how the lighting behaves throughout the autonomy.

What is the ANSI FL1 standard?


The ANSI (American National Standards Institute) standard ensures that users standardize the terms used. It is the only existing standard dedicated to headlamps. Originally intended for professional lamps and torches, this standard has become more widespread and is now included in the sports lighting sector.


It defines 7 technical characteristics of a lamp: luminous efficiency, luminous efficiency autonomy, beam range, maximum beam intensity, impact resistance, water resistance and watertightness in case of immersion in water.
The type of lighting (constant or standard) is determined via the light output autonomy indicator. The product's autonomy is calculated from the moment the headlamp is at its maximum luminous efficiency (30 seconds after switching on), up to an efficiency of 10% . For example, if at 30 seconds we obtain 300 lumens, the autonomy will be determined once the light intensity reaches 30 lumens. The remaining 10% corresponds to the lamp's autonomy reserve.


This standard therefore allows certain brands to advertise very high lighting power for a very long time, without maintaining this power throughout the advertised battery life.



Why are the light curves so different?


The difference between the two light curves is related to the difference in heat production and dissipation. Indeed, the loss of efficiency of an LED is largely due to excessive temperature.

On the Go'Lum, in order to reduce heat production as much as possible and dissipate it, we have implemented several things:

  • A meticulous choice of the LEDs we use

  • The development of an exclusive Go'Lum LED driver

  • The use of aluminum as a material for our case

  • The construction of a case designed to dissipate heat as well as possible


If you want to know more, go to the “ our expertise ” page.

The advantages of constant lighting?


As you can see, the choice of lighting is a very important selection criterion . Constant lighting makes your night outings safer . The lighting power is always the same, so you won't end up with unsuitable lighting on demanding terrain.


Each of our headlamps offers consistent illumination. You can trust your Go'Lum! The indicated lighting power remains the same from the beginning to the end of your outing.


Finally, if you prefer to focus on your stride rather than your lighting, we've got you covered!
We have developed Go'Lum intelligent lighting . This exclusive and protected technology does everything for you . It is present on Piom+3 . Your Go'Lum considers in real time your speed and the technicality of the terrain you are on, to offer you the right lighting at the right time . In intelligent autonomy priority mode, you will maximize autonomy for long outings. In intelligent power priority mode, you prioritize visual comfort and safety for shorter outings?

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