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Diall 4W Filament review


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The Diall 4W Filament light bulb claims to give out as much light as an old-style 40W bulb. It could be the perfect bulb for a bedside lamp. We sent it off to our test lab to put it through our extensive light bulb test programme. Find out whether it shone against the competition.
Is it worth your money?
Or is it a waste of cash?
  • Light quality

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  • Colour temperature

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  • Efficiency

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