podcastsinenglish Level 3.134 The light fandango
May 25, 2017
The discussion shines a light on the evolution of light bulbs from simple choices in the past to today's tech. The hosts explore the energy-saving journey from compact fluorescents, noting their quirks, to the impressive advancements of LEDs. They highlight the confusion consumers face with numerous LED options and clarify the importance of lumens and color temperature over traditional wattage. The vibrant debate concludes with a thought-provoking question about whether the LED revolution is genuinely a step forward.
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Everyday Choices Have Evolved
- Household choices have shifted dramatically in one generation, affecting common items and routines.
- Light bulbs joined music and cooking as everyday things that have changed for consumers.
A Memory Of Simple Bulb Choices
- Other Host recalls the simple bulb choices before the 1990s: base type, clear or frosted glass, and wattage.
- He gives 40, 60 or 100 watt examples to illustrate how straightforward it used to be.
CFLs Were Efficient But Impractical
- Compact fluorescent lamps (CFLs) brought big energy savings but had notable drawbacks.
- CFLs warmed up slowly and were most efficient when left on for long periods, limiting use-cases.