What is single beam and dual beam headlights, how to clarify them. In short, single beam headlight bulb means a bulb comes with a single filament for single function (Either high or low beam). Dual beam headlight means a bulb comes with two filamens to provide dual function (both high and low beam)
https://www.naoevo.com/blogs/news/signal-beam-vs-double-beam-how-to-easily-distinguish-them
Copyright 2019 © P-tweets Refunds