Hello,
I looked at my dad's bicycle and saw that there is only 1 wire there! I mean the lamp in my dad's bicycle has only 1 wire! And I don't know how it is being lighted as there is no battery!
OK, general question. How does a lamp or any other devices that has only 1 wire will work?
I looked at my dad's bicycle and saw that there is only 1 wire there! I mean the lamp in my dad's bicycle has only 1 wire! And I don't know how it is being lighted as there is no battery!
OK, general question. How does a lamp or any other devices that has only 1 wire will work?