What does solid state mean?
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What are the common elements that make up an LED?
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How are LEDs made?
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How efficient is an LED compared to a CFL or an incandescent bulb?
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Lượt xem: 4180
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What are the wattages of a normal incandescent light compared to an LED?
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Lượt xem: 4075
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How long do LED bulbs last?
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How long do standard incandescent bulbs in street lights last?
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How many incandescent bulbs (and light bulb changes) do you need to last as long as a single LED?
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Lượt xem: 3995
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How do you replace a normal incandescent street light with LEDs?
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Lượt xem: 4158
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What colors are LEDs available in commercially?
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Lượt xem: 3926
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