Petzl - PIXA 3 100 Lumens Multi-beam headlamp suitable for proximity lighting, movement and long-range vision, with CONSTANT LIGHTING technology CONSTANT LIGHTING technology ensures brightness that does not gradually decrease as the battery drains Certification(s) : CE, ATEX : Zone 2/22, HAZLOC : Class 1 div II, Class 2 div II Watertightness : IP 67 (waterproof to -1 meter for 30 minutes, no maintenance required after immersion)