Mercury
Shedding Light on Compact Flourescent Lamps
Shedding Light on Compact Flourescent Lamps

  What are the different types of household lamps? Incandescent lamps: The most common type of household light bulb. ¬†An electric current passes through a thin filament, heating it and causing it to emit light. Halogen lamps: A modified form of incandescent lamp. They are more expensive to buy but last twice as long. Light […]