Halogen Lighting Technology

What is the main function of the tungsten filament in an incandescent bulb?

• To provide structural support

• To convert electrical energy into light

• To change the color of the light

• To cool down the bulb

Why do incandescent bulbs have a glass envelope?

• To make the bulb look pretty

• To make the bulb heavier

• To keep the filament from burning out

• To change the color of the light

What is a key disadvantage of incandescent bulbs?

• They are too small

• They are too bright

• They convert most energy into heat

• They are too cheap

What is a major difference between halogen and incandescent bulbs?

• Halogen bulbs are cheaper

• Halogen bulbs use a halogen gas

• Halogen bulbs are smaller

• Halogen bulbs are less bright

What happens if you touch a halogen bulb with your fingers?

• It becomes brighter

• It changes color

• It becomes cooler

• It can get damaged