EnLightPRO13–LED Bicycle Light for Dynamo-Powered, Plug-In Base P13.5s, as A replacement for your bicycle light; LED Bicycle Light : Amazon.de: Sports & Outdoors
Halogen Bike Bulb Bulb Replacement Front Light HS3 2/4W 6V NEW Halogen | eBay
EnLightPro10 – Fahrrad-LED-Birne Schraubsockel E10 | Fahrradlampe für Dynamo-Betrieb | Super Heller Ersatz für die Fahrrad-Glühbirne : Amazon.de: Sport & Freizeit