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UPSC 2011 • Q64Science & Technology, Materials & Clean EnergyEasy
Applied Chemistry & Everyday Science
What is the difference between a CFL and an LED lamp? 1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semi-conductor material. 2. The average life span of a CFL is much longer than that of an LED lamp. 3. A CFL is less energy-efficient as compared to an LED lamp.
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