How to Convert CFL Watts to Lumens

Written by dan howard
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How to Convert CFL Watts to Lumens
Lumens measures the intensity of light emitted by a bulb, while watts measures the amount of energy produced by the bulb. (light bulb image by Sheldon gardner from Fotolia.com)

Lumens refer to a unit of measurement that indicates the amount of light that is emitted by a light bulb or other light source. Compact fluorescent light bulbs typically are rated in terms of the number of lumens of light they are capable of emitting. If you would like to estimate the amount of power that the bulb is capable of emitting then you can use a simple conversion technique to calculate the compact fluorescent bulb's output in Watts.

Skill level:
Easy

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Things you need

  • Calculator

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Instructions

  1. 1

    Type the number of lumens that your compact fluorescent light bulb is capable of emitting into your calculator.

  2. 2

    Press the multiplication key.

  3. 3

    Type in the number 0.0015. This is the coefficient that is used to estimate the number of watts of energy that a light bulb emits based on the number of lumens of light that it produces.

  4. 4

    Press the equals key. The number that is displayed is the approximate number of watts of energy that is produced by your compact fluorescent light bulb.

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