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Super-Energy-Saving Bulb Released on Earth Day

dateline: 24 April 2012

Pre-Listening Vocabulary

  • watt: a standard unit of electrical power
  • LED: short for light-emitting-diode; an energy-saving form of lighting
  • efficient: uses a small amount of energy to achieve good results
  • incandescent: emits light via heat

Super-Energy-Saving Bulb Released On Earth Day

A prize-winning $50 light bulb went on sale on Sunday the 42nd International Earth Day. The super-energy-saving light bulb, made by Philips, 30,000 hours, or about 4 hours per day for twenty years. According to Philips, the 10-watt LED bulb is more energy efficient than a 60-watt incandescent bulb. Philips estimated that the US could save 3.9 billion dollars per year by every 60-watt bulb with this prize-winning bulb.

Comprehension Questions

  1. What did Philips do this Earth Day?
  2. What is the current cost of the 10-watt bulb?
  3. How long does the prize-winning bulb last?

Discussion Question: Should developed countries make this type of bulb mandatory?

show Answers

Written by Tara Benwell for EnglishClub
Tara Benwell is a Canadian freelance writer and editor who specializes in materials and articles for the ELT industry.

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