10

120

40

100

2

50 m 200 lm

200 m

200 lm

© 2024 Petzl Distribution - Lafouche

Different Beam Types

Brightness: the shape of the beam directly affects lighting distance

Lighting distance depends directly on brightness, but mainly on the shape of the beam.

In fact, given the same brightness, lighting distance will vary depending on the shape of the beam.

Petzl indicates the different lighting modes available for each headlamp. These modes correspond

to specific conditions of use: close-range work, moving around, seeing at a distance.

Brightness (lumens)

This measurement is taken between 30 and 120 seconds

after the headlamp is turned on. It indicates the maximum

light output when the lamp is first turned on using new

batteries (included).

Burn time (hours)

This is the length of time for which lighting remains

optimal, from the moment the lamp is turned on until it

drops to 10% of maximum light output. It then switches

to reserve lighting.

Lighting distance (meters)

This is the maximum distance between the lamp and

the location where only 0.25 lux of illumination remains.

The measurement is taken when the lamp is turned on,

using new batteries. Lighting distance depends directly

on brightness, but mainly on the shape of the beam.

Reserve lighting

(outside of the ANSI/PLATO FL 1 protocol)

In addition to these measures, Petzl offers reserve

lighting. Reserve lighting provides a minimum light level

to be able to move around. However, the lighting may

be insufficient for certain activities (such as precision

work or inspection).

Lighting Performance: How Is It Measured?

Lighting performance as def ined by the ANSI/PLATO FL 1 protocol

Petzl has chosen to comply with the ANSI (American National Standards Institute) FL 1 protocol to measure and demonstrate the lighting

performance of our headlamps. This voluntary move allows users to easily compare the lighting performance of different headlamp models

using standardized criteria.

Hours

or

Brightness

(lumens)

Burn time

(hours)

Focused beam

Focused beam allows focused lighting on a target

in order to see objects or people at a distance.

Mixed beam

Mixed beam consists of a wide beam and a focused

component, allowing both proximity lighting and

longer-range vision for moving around.

Wide beam

Wide beam designed for proximity lighting, to see up

close or around your feet. The wide angle provides

a very large and comfortable field of view.

Optimized lighting performance:

REACTIVE LIGHTING

®

Brightness varies according to the user’s need.

Intelligent lighting optimizes battery life, offering

longer burn time.

Prioritizing guaranteed brightness over time:

CONSTANT LIGHTING

Brightness stays constant as the batteries drain.

When the batteries are almost drained, the headlamp

switches automatically to reserve lighting, providing

reduced brightness with longer burn time.

Example of REACTIVE LIGHTING

Example of CONSTANT LIGHTING

Example of STANDARD LIGHTING

Prioritizing burn time: STANDARD LIGHTING

Brightness decreases gradually as the batteries

are drained. It is the most common technology.

A Question of Balance

Brightness and burn time are two inextricably

linked parameters of any headlamp, regardless

of its lighting technology. For a given quantity of

energy, increasing the brightness automatically

decreases burn time, and vice versa.

Different Lighting Technologies

Prioritizing burn time

over brightness

Lumens

Lumens

Actions

Hours

Lumens

Prioritizing brightness

over burn time

Brightness and Burn Time