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| Search found 1 match |
| Author | Message |
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 Topic: lights |
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| lights34 Replies: 2 Views: 112 |
 Forum: Welcome to Education Gateway Posted: Sat Sep 14, 2013 5:34 am Subject: lights |
| The pros and cons of energy-efficient light bulbs have been much debated over the last decade. The main focus of the
discussion has been CFL light bulbs. Introduced in the '80s, these electricity ... |
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