Tools
Quick, free tools to help you buy and fix LED bulbs.
LED bulb finder
Answer a few questions and get a shopping spec for the right replacement bulb.
Fix My Bad Bulb
Diagnose a bulb that looks harsh, blue, dim, glary or flickers — and get the fix.
Watts to lumens calculator
Convert an old bulb wattage to the LED brightness (lumens) to look for.
Room lighting calculator
Work out how much light a whole room needs, and how much per bulb.
Bulb base finder
Identify your fitting: B22, E27, E14, GU10 or MR16.
Dimmer compatibility checker
Check whether your LED will dim smoothly, or flicker and buzz.