HOW MUCH LIGHT DOES MY ROOM NEED?

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Planning:

HOW MUCH LIGHT DOES MY ROOM NEED?

This is really a matter of personal preference as some people prefer a really bright light whilst others may like to have a more subdued effect. If you are changing the lights in your room consider whether you want more or less light than you already have. It may also be worth considering fitting a dimmer switch so you can control the level of light, but check that the fitting and bulbs you choose can be dimmed. For instance, if you are reading in your sitting room you will want a much brighter light than if you are watching TV.

As a basic guide to determining the level of light you need calculate your room size in square metres and multiply by 25 (for incandescent lamps or conventional bulbs), by 15 (if using halogen bulbs) or by 19 (for fluorescent or low energy bulbs). For example, if your room measures 4m x 5m it has an area of 20 square metres. If you are using conventional bulbs multiply this by 25 giving a total wattage of 500 watts, or a light level of around 5000 lumens required. The lumen level of each bulb will vary depending on the type of bulb and manufacturer, check the specific lumen level of each bulb to measure up with the overall "target".

To summarize:

  1. Measure the length and width of your room.
  2. Multiply the length by the width in metres.
  3. Multiply this number by 25.
  4. The resulting number is the recommended amount of standard watts.

This is only a rough guide as you may need to have slightly more light in a kitchen and slightly less if it is a bedroom. Unsure about lumens? Check out our other frequently asked question below:

Q: WHAT ARE 'LUMENS'? WHY CAN'T WE JUST KEEP 100 WATT LIGHT BULBS? IT'S JUST CONFUSING!

 

 

 

See below our room lighting calculator if you need a quick approximation:

 

 

Do not forget that the correct light level can be achieved by the addition of table lamps, floor lamps, desk lamps etc. which can be turned on when required.

 

 

Perhaps you're lighting an entire home, in which case we have a great blog walking you through complete home illumination. Click the blog button below to view:

Browse our outstanding range of lighting here: The Lighting Company

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