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Quizzes & Puzzles0 min ago
We have a number of 240v halogen spots around the house. The prices of the lamps range from �1.80 tesco value, to �3.80 osram etc. Each lamp is the same wattage, voltage and claims 1000hr life. Yet invariably when I buy the cheaper ones they all blow within a couple of months, and yes, when I buy the dearer ones they go on for about three times longer!
Why should this be? surely if they both have 1000hr life they should last the same time each. All enlightenment welcomed.
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