Can be just about anything, from a small button battery for a small LED, to NiCd to Li-Po.
None a lamp uses a lightbulb
the faster the speed of the bicycle,the brighter the lamp
Depends on the voltage and amperage of the battery vs. the voltage and amperage required of the bicycle.
You'd need a bicycle with a generator, and then some adaption electronics to turn the electricity from the generator into something that can be used for battery charging.
Same way a regular kerosene lamp is made. It's mainly the casing and the bracket that's different.
Because it is a type of lamp.
Either a battery or a dynamo.
a) when the lamp is turned off b) when he has a tailwind or a descent.
Radio pilot lamp
Radio pilot lamp
Yes if it is used to charge a battery.
It's made of plastic then there's a filament inside to make it light up.