Unfortunately, the lamp is not working as it should on my son's bicycle. The sensor works correctly in any setting. Actually, there is only on or off, an outdoor light-controlled automatic does not run. But the normal light is well worth seeing. Actually, it's me on Kinderrad only powers wherever lighting is switched on. I have on my bike one of these pigs expensive Busch and Müller Lumotec IQ Cyo spotlights and am often on puzzles me why the AXA simply brighter occurs even though the B & M loose twice Lux to have?