an led is more efficient device than a bulb why
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Due to the presence of ions in them, most liquids conduct electricity. An LED is more efficient device than a bulb. ... LED is more efficient because it can glow even when a weak or less current flows through it.
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Due to the presence of ions in them, most liquids conduct electricity. An LED is more efficient device than a bulb. ... LED is more efficient because it can glow even when a weak or less current flows through it.
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