Petzl Duo Z1 frontal speleology lamp is the new lighting system created by the French brand and designed not only for the hypogeal environment but also for the professional environment and environments with risk of explosion Atex. A front that can adapt to any situation and compatible with helmets Vertex and Alveo, thanks to the supports provided. This is what Petzl sais about Duo Z1. Powerful rechargeable multi-beam headlamp with FACE2FACE anti-glare function, certified for use in ATEX hazardous areas. 360 lumens DUO Z1 is a headlamp with a maximum 360 lumens of lighting in BOOST mode that runs on a rechargeable battery. It is multi-beam, and has four lighting modes, making it adaptable to every situation: close-range work, proximity, movement and long-range vision. Featuring the FACE2FACE anti-glare function, the DUO Z1 headlamp allows those working in a group to face each other without blinding one another, enabling them to work more effectively together. It can be worn on VERTEX and ALVEO helmets, thanks to the included mounting plates. It meets ATEX zone 1/21 (II 2 GD Ex ib IIB T4 Gb IIIB T135° C Db) certification requirements for work in hazardous areas. Four modes, plus BOOST, to adapt lighting to any work situation: - close-range lighting: low-intensity flood beam maximizes burn time - proximity lighting: mixed beam with brightness suited for comfortable proximity vision - lighting for movement: mixed beam offers a focused component for easily moving around - distance vision: highly focused beam for seeing at a distance - BOOST mode provides temporary access to maximum power of 360 lumens ATEX zone 1/21 (II 2 GD Ex ib IIB T4 Gb IIIB T135° C Db) certified headlamp for use in explosive environments Safety and comfort when traveling in a group, thanks to the FACE2FACE anti-glare function: automatically dims the light when two or more beams cross, enabling those using DUO headlamps to face each other without blinding one another CONSTANT LIGHTING technology: stable lighting over time, ideal for long work periods Rechargeable battery: - Lithium-Ion battery, 6400 mAh, 3.7 V, 23.68 Wh - rechargeable in eight hours - energy gauge - removable and replaceable (available as accessory) - ACCU 2 DUO Z1 charger (included) Reliability and ergonomics: - balanced, thanks to the remote battery pack worn on the back of the head - easy-to-use button, even with gloves - electronic locking to avoid accidentally turning it on during transit or storage Rugged: - IP 67 (waterproof to -1 meter for 30 minutes in fresh water) - excellent resistance to falls, to impacts and to crushing Petzl Duo Z1 caving headlamp