Lead-acid batteries were replaced by dry cells and later by alkaline batteries. Dynamos improved in efficiency and reliability, recently being incorporated into the wheel hub, for example.
Moulding techniques for plastics also improved, allowing lens optics to be improved and cost reduced. Incandescent bulbs were replaced first by sealed-unit halogen lampsand later by high-output light emitting diodes. The item "Vintage Three Star Paraffin Oil Bicycle Cycle Lamp Light unused in original box" is in sale since Sunday, April 21, 2019. This item is in the category "Collectables\Transportation Collectables\Bicycle\Other Bicycle".tali1985" and is located in Barrow-in-Furness.This item can be shipped worldwide.