Tested up to 130 meters. At this distance, it still lights but this is the limit. Small and lightweight it fits everywhere. Most functions are there to folklore, impossible to use at night!. Autonomy closer to 4:00 30. It seems brittle when dropped and corresponds to a lamp for hiking or troubleshooting rather than for intervention. Personally, working in the latter case, I prefer by far the VARTA Indestructible as powerful and really unbreakable (plus cheaper).
