Classification of electric bulb
The classification of electric bulbs is primarily based on their design, size, power consumption, voltage rating, and the type of filament used. The following are the most commonly used types of bulbs:
1. Incandescent bulbs: These are the oldest and most common type of bulbs. They contain a filament made of tungsten that glows when electricity passes through it. They come in various sizes and shapes, such as A-shape and globe-shaped bulbs.
2. Halogen bulbs: These bulbs are similar to incandescent bulbs but have a halogen gas (usually iodine or bromine) inside the bulb that helps increase their efficiency and longevity.
3. LED bulbs: These bulbs use light-emitting diodes to produce light. They are highly energy-efficient and last much longer than incandescent or halogen bulbs.
4. Compact fluorescent bulbs: Also known as CFLs, these bulbs use a combination of gas and electricity to produce light. They are more energy-efficient than incandescent bulbs but contain toxic mercury, which makes their disposal a concern.
5. High-intensity discharge bulbs: These are used in outdoor lighting and street lamps. They produce a high-intensity and bright light by passing electricity through metal vapors.
6. Neon bulbs: These bulbs are typically used for decorative purposes due to their unique and colorful lighting. They operate by passing electricity through a gas-filled tube to produce visible light.
7. Mercury vapor bulbs: These bulbs are typically used in areas where high-intensity light is required, such as stadiums and warehouses. They produce light by passing electricity through a mixture of argon and mercury vapor.