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Five tips for choosing the right light bulb
The Which? expert guide on choosing the right light bulb takes the hassle out of shopping. We explain the differences between LED, CFL and halogen light bulbs, also offering advice on how to get the right bulb brightness at home.
How we test energy saving light bulbs
Find out how Which? independently tests energy-saving light bulbs - including classic GLS bulbs and GU10 spotlights - to find the best for your home.
How to buy the best light bulb
We explain how to buy the best light bulbs. Find out whether CFL, LED or halogen bulbs are right for you as we go through the pros and cons of each.