Lumens vs. Watts

Use this handy chart to get the brightness right.

Watts

 

Lumens

40

=

450

60

=

800

75

=

1100

100

=

1600

150

=

2600

The brightness of today’s bulbs is measured in lumens (lm). Lumens measure the amount of light a bulb produces, unlike watts, which measure power consumption. The chart to the left shows you how to maintain the same level of brightness when switching from an incandescent bulb that uses watts to a CFL or LED that uses lumens.