What are lumens?

You may have noticed that now there is a Lumen value listed on the side of bulb boxes. Lumens are a measurement of how much light a bulb gives out in all directions.

Lumens = Light Output

The higher the lumens rating means the brighter the bulb will appear.

How many lumens do you require?

This depends on a number of factors like room size and height of your ceiling, type of fitting and bulb, also what you are using the room for.