एलईडी बल्ब कैसे काम करता है?

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 एलईडी बल्ब कैसे काम करता है?



एलईडी बल्ब एक सेमीकंडक्टर डिवाइस होता है जो बिजली से प्रकाश पैदा करता है। यह कम बिजली में ज्यादा रौशनी देता है।

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