File:LEDEfficiency.jpg
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© Department of Trade & Industry, UK Government
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 12:23, 13 April 2016 | | 499 × 317 (28 KB) | WikiSysop (Talk | contribs) | © Department of Trade & Industry, UK Government |
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