A standard 40w bulb is equal to 400 lumens which represents the brightness of a bulb.
40w bulb lumens.
A 100w bulb was brighter than a 40w bulb but this isn t always the case anymore.
As a rule you ll replace a standard 75 watt bulb with an energy saving bulb of about 1100 lumens.
In the table below you can easily see how much 40 watt in lumens is and which alternatives you can choose.
For example if you typically purchase 60w incandescent bulbs which produce about 700 800 lumens consider purchasing a lower energy alternative like a 42w halogen bulb 12w cfl or even a 10w led bulb to achieve the same brightness.
What should i look for on the package.
Rely on new bulb labeling standards to show lumen output and help you choose the right brightness for your needs.
The lighting facts label.
Replace a 60w bulb with an energy saving bulb that gives you about 800 lumens.
The color is a soft white which is similar to soft white incandescent bulbs.
A19 frosted incandescent rough service light bulb 40 watt long life 10000 hours 2700k soft white e26 medium base 250 lumens 130v 6 pack 4 4 out of 5 stars 192 11 99 11.
Watts chart below to shop for the right light bulb for your space.
Replace a 60w bulb with an led bulb that gives you about 800 lumens.
To make sure we get the correct replacement bulb in terms of the brightness we need to think in terms of light output.
Click the equivalent wattage in the lumens vs.
A lumen measures the amount of light that comes from a bulb also known as light bulb brightness.
Replace a 40w bulb with an energy saving bulb that gives you about 450 lumens.
Replace a 75w bulb with an led bulb that gives you about 1100 lumens.
For example to replace a 40 watt light bulb for a led lamp the amount of lumens must be compared.
If you prefer brighter light look for more lumens.
For instance the cfl in the photo on the right says the sylvania super saver cfl is a replacement for a 100 watt bulb with a lumen brightness output of 1500.
The energy used is 24 watts saving you 60 in energy costs and will last for 7 years.
Light output is measured in lumens and can be found in the specification of all the product pages on our website.
Replace a 40w bulb with an led bulb that gives you about 450 lumens.
To help consumers better understand the switch from watts to lumens.
Typically the higher the wattage the higher the lumens and the more light output.