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Can you give me a comparison of wattages for energy saving light bulbs and normal bulbs

i.e. What is the equivalent of a 42 Watt bulb and a 20 watt bulb

By Anonymous - Somerset - 28 July 2011

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42W B22 G9 GLS Xenon Bulb - Warm White Stock Number: ES1387142

55W equivalent bulb offers a brighter output for less energy consumption

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