Filters 0
Filters 0
FORCLAZ Ref. 8577503 2974825

Rechargeable Head Torch - 100 lumen - BIVOUAC 500 USB

Tax included
Colour: BLUE
  • RED
  • BLUE
Not available

Store Availability

Passionate about trekking, FORCLAZ designed this ultra-compact head torch for use in camp or refuge to move around at night and light up the surroundings



11h in eco, 4h in power mode + 30min reserve. Rechargeable by microUSB

Ease of use

A single button that can be easily handled even with gloves. Locked mode


3 lighting modes: Red, White Eco, White Power. Dimmer

Visual efficiency

Wide beam (100 lm) with a range of 25m ideal for hiking and bivouacking


Splash-proof (IPX4 standard)




Recharge time of approximately 2 hours


SIZE (L x H x D)

51 x 28 x 26 mm (excluding headband)

Lighting modes

The FORCLAZ BIVOUAC 500 USB head torch has 3 modes suited to every situation:

- Red fixed mode to stay discreet in a mountain refuge or preserve your night vision

- Eco mode (20lm) for map reading or bivouac use

- Power mode (100lm) for moving about a campsite

The dimmer allows you to adjust the power between 10 and 100 lumens by pressing the button

At the end of the battery life, the automatic reserve mode provides 30 min at 20 lumens


750mAh lithium-ion battery that is rechargeable with a microUSB cable (supplied) and compatible with external chargers and FORCLAZ solar panels.


The BIVOUAC 500 USB's wide beam diffuses light uniformly so you can see in front of you and to the sides

Lighting technology

Constant LED lighting: lighting performance does not decrease as batteries lose charge.The battery life is calculated according to the FL1 standard.

For each mode, it corresponds to the maximum duration during which the lamp is capable of providing at least 10% of the maximum power of the mode concerned. This maximum power is measured between 30 seconds and 1 minute after it is switched on, with a full battery charge.

Optimal torchlight range

Maximum range of 25m in power mode.

The range is measured according to the FL1 standard: It corresponds to the maximum distance at which the torch provides a brightness of 0.25 lux (local measurement).

This brightness is equivalent to that provided by the moon in the best possible conditions.


Monobloc design for optimal compactness. Easily accessible switch on the top of the torch

The BIVOUAC 500 USB head torch can be locked (by holding it in the off position for a few seconds) to prevent accidental lighting in your bag.


15 mm wide removable and washable headband. Composition: 70% polyester and 30% natural rubber for maximum comfort.

The two symmetrical buckles facilitate tightening.

The BIVOUAC 500 USB head torch can be adjusted to fit all head sizes, from children to adults, as well as mountain helmets.


The FORCLAZ BIVOUAC 500 USB head torch is delivered in a fabric pouch with its USB cable to protect and store it. The absence of any disposable packaging reduces its impact on the environment



Main part: 10.0% Polyester, 50.0% Battery Lithium, 10.0% Polycarbonate, 30.0% PCBA; Carry bag: 10.0% Polypropylene, 80.0% Polyester, 10.0% Polyoxymethylene

Tips for storage and maintenance

Storage tips

Remember to fully recharge the battery (every 6 months) when storing for a prolonged period. Store in a dry place, away from direct sunlight


Test product

Here at DECATHLON, our products are tested by a panel of users in the real-life conditions for which they were designed. These tests are led and run by a team of engineers dedicated to this task. Our product managers, engineers and the entire FORCLAZ team use the results of these tests to develop and create high-tech, durable products to ensure the satisfaction of our users.


2 Years

Agree by

Our customer-enthusiasts recruited via our DECATHLON Creation test platform: