Trelock LED Headlamp Bike-i duo 25LLS 862/25 Lux, black / gray, 4032191787299 (equipment)
I had a few years now a halogen Brine in combination with a hub dynamo and had here almost every year a new bulb buy with a cost point of about 3 euros on average. Of course, such a bulb burns whatsoever then, when you need them, namely in winter. So