Tested at an ambient temperature of 22°C (+/- 3°C). :
Brightness is measured when the lamp is turned on, using new batteries
Lighting distance depends directly on brightness, but mainly on the shape of the beam.
The maximum distance is tha between the lamp and the location where only 0.25 lux of illumination remains. Measurement is
done when the lamp is turned on, using new batteries.
These specifications may vary depending on usage conditions (battery quality, cold temperatures...
Lamp performance with 3 AAA Duracell Batteries :
When the lamp is turned on, it performs the same as with a rechargeable battery in terms of lumens and distance. However, during use of the lamp, the management of available energy varies depending on battery choice: rechargeable or standard
With the CORE battery (optonal extra), the brightness stays generally constant over the entire rated burn time
With standard batteries, brightness gradually decreases as the lamp is used In conclusion, the rated burn time with standard batteries is longer,
but brightness gradually decreases with use
Before leaving the assembly line, all Petzl headlamps are individually inspected. These operations include a measurement of lighting
performance carried out with a specific digital camera, and a test for water-tightness.
The mechanical strength of headlamps is verified with fall, shock, and crushing tests. These tests are performed twice on the most fragile parts
of the six faces of each product : lens, etc
fall tests : headlamps undergo a fall of 2m, and then 1m
shock tests : tested with a weight of 500g dropped from a 40cm height
crushing tests : a mass of 80 kg rolls over the lamp
Function tests verify the mechanical endurance of the moving parts of each product. Each function is tested with the help of an automatic test
bench in order to ensure proper functioning and reliability over time :
- selector button
- battery pack...
A supplementary test subjects the headlamp to strong vibrations.
High-capacity Lithium-Ion 1250 mAh rechargeable battery guarantees high performance lighting for HYBRID headlamps even at low temperatures.
It recharges directly with the integrated USB port. The CORE rechargeable battery offers an economical and sustainable solution as the main
power supply, or as a back-up battery Charging indicator on the battery (red = charging; green = battery charged)