Headband flashlight Petzl Duo S Black Yellow

The Petzl Duo S headlamp is an ultra-powerful, rechargeable headband flashlight that delivers up to 1100 lumens in BOOST mode. Designed for demanding outdoor and sport activities, it combines waterproof and impact-resistant construction with a removable 3200 mAh Lithium‑Ion battery and the FACE2FACE anti‑glare function that reduces glare when users face one another.

Advantages

The DUO S offers five lighting modes plus a temporary BOOST mode to adapt illumination to different tasks, from wide, low‑intensity lighting for long burn time to a focused beam for distance vision. It is waterproof to 1 meter for 30 minutes (IP67 equivalent), resistant to impacts and crushing, and features a removable, rechargeable 3200 mAh battery with an energy gauge and quick 4‑hour charge using the included 110/240 V charger. Ergonomic features include a large glove‑friendly button, automatic lock to prevent accidental activation, reserve mode when battery is low, and a balanced design with the battery pack positioned at the back of the head.

Suitable for

• Caving and spelunking
• Orienteering and trail navigation
• Night cycling and mountain biking
• Group expeditions and team work where anti‑glare is useful
• Professional outdoor tasks requiring durable, rechargeable lighting

Key specifications

• Maximum output: 1100 lumens (BOOST)
• Battery: 3200 mAh Lithium‑Ion, removable and replaceable (accessory)
• Charging time: 4 hours with included 110/240 V charger
• Waterproof: to 1 m for 30 min (fresh water)
• Weight: 0.37 kg
• Product colours: Yellow, Black
• Anti‑glare: FACE2FACE automatic dimming when beams cross

How to use

Charge the battery fully using the supplied 110/240 V charger (about 4 hours). Fit the headlamp and adjust the strap for a balanced, comfortable fit with the battery pack at the back of the head. Select the required lighting mode with the large central button; press BOOST briefly for maximum output when needed. The lamp locks automatically to prevent accidental activation during transport. When the battery level is low the lamp switches to reserve mode and the energy gauge indicates remaining charge. The battery can be removed for charging or replaced with an available accessory.

Recommendations

For group use, rely on the FACE2FACE function to reduce glare when facing others. Rinse the headlamp after exposure to dirty water and remove the headband for washing as needed. Use the PRO ADAPT adhesive plates (accessory) to mount the lamp on helmets. Store with the lock engaged during transport.