Simple

Simple bulbs are the traditional and most economical options for car lighting. They produce sufficient brightness for everyday driving, although they do not offer the same intensity or lifespan as other modern technologies, such as LED or Xenon.

Voltage indicates the electrical current required for a lamp to function properly. Most car lamps operate at 12V, which is the standard voltage for most passenger vehicles. In trucks or heavy vehicles, 24V lamps are usually used.