Diall 4W Filament review
Test scoreShow Context
- Filament LED
- Warm white
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.
- Pros and cons
First reviewed by Which?
January 2018
Technical specifications
General
- TypeFilament LED
- Total length of bulb106mm
- Maximum diameter of bulb60.0
Test results
The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.
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Make smarter choices
- 56%Lowest score
- 68%Average score
- 84%Highest score
Put us to the test
Our Test Labs compare features and prices on a range of products. Try Which? to unlock our reviews. You'll instantly be able to compare our test scores, so you can make sure you don't get stuck with a Don't Buy.
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