Living Green - Episode 98 - 60 Year Light Bulb

LEDs are a sustainable lighting solution, lasting up to 60 years and reducing energy consumption. They use gallium nitride semiconductors and are traditionally made on sapphire wafers. By switching to silicon wafers, production costs decrease, making LEDs more affordable. As conventional bulbs are phased out, LEDs provide lighting that is three times more efficient than fluorescent lights. Available in various colors, LEDs offer a viable, eco-friendly lighting system for the future.

How long can the tiny LEDs last while reducing energy consumption?

• Up to 40 years

• Up to 60 years

• Up to 20 years

• Up to 80 years

What semiconductor is used in the tiny LEDs?

• Silicon carbide

• Gallium nitride

• Indium phosphide

• Aluminum oxide

What is the benefit of switching from 2-inch sapphire wafers to 6-inch silicon wafers in LED production?

• Enhanced durability

• Lower production cost

• Reduced size

• Increased brightness

How much more efficient are these LEDs compared to fluorescent lights?

• Twice as efficient

• Three times as efficient

• Four times as efficient

• Five times as efficient

What makes these LEDs a viable lighting solution for the future?

• They are available in limited colors

• They are expensive but efficient

• They are cheap, eco-friendly, and efficient

• They are only suitable for industrial use