Living Green - Episode 98 - 60 Year Light Bulb

LEDs can last up to 60 years, offering reduced energy consumption and more light. They use a gallium nitride semiconductor and are traditionally made on 2-inch sapphire wafers. By switching to 6-inch silicon wafers, production costs are reduced, making them more cost-effective. As conventional bulbs are phased out, LEDs provide lighting that is three times more efficient than fluorescent lights. Available in various colors, they offer a viable, cheap, and eco-friendly lighting solution for the future.

How long can LED lights last while reducing energy consumption?

• Up to 20 years

• Up to 40 years

• Up to 60 years

• Up to 80 years

What semiconductor is used in the tiny LED?

• Silicon carbide

• Gallium nitride

• Indium phosphide

• Aluminum oxide

What change in manufacturing makes LEDs cheaper to produce?

• Using 8-inch silicon wafers

• Switching to 6-inch silicon wafers

• Switching to 2-inch silicon wafers

• Using 4-inch sapphire wafers

How much more efficient are LEDs compared to fluorescent lights?

• Twice as efficient

• Three times more efficient

• Five times more efficient

• Four times more efficient

What are some benefits of LEDs over conventional bulbs?

• Higher energy consumption

• Limited color options

• Shorter lifespan

• Eco-friendliness and cost-effectiveness