Watt-to-lumen conversion chart
We all know how much light a 60-watt bulb will produce. But the brightness of new CFL and LED lightbulbs are measured in lumens, not watts, so here’s a handy chart to help you do the conversion.
Lightbulb brightness in general is measured in lumens (not watts). Bulb manufacturers include this information and the equivalent wattage right on the packaging. Common terms are ‘soft white 60,’ ‘warm light 60,’ and ’60 watt replacement.’
To replace a 100 watt (W) incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for less lumens; if you prefer brighter light, look for more lumens.
Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens
Replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens
Replace a 40W bulb with an energy-saving bulb that gives you about 450 lumens.
To save energy, find the bulbs with the light output you need, and then choose the one with the lowest wattage. You can also look for an RAZORLUX qualified bulb that is labeled as equivalent to the incandescent bulb you are replacing.
Lumens let you buy the amount of light you want. So when buying your new bulbs, think lumens, not watts.
When you’re shopping for lightbulbs, compare lumens to be sure you’re getting the amount of light, or level of brightness, you want. The Lighting Facts Label will help. This new label will make it easy to compare bulb brightness, color, life, and estimated operating cost for the year.
BUY LUMENS, NOT WATTS
In the past, we bought lightbulbs based on how much energy, or watts, they use. Wouldn’t it make more sense to buy lights based on how much light they provide?
When you’re shopping for lightbulbs, you can choose your next lightbulb for the brightness you want by comparing lumens instead of watts. A lumen is a measure of the amount of brightness of a lightbulb — the higher the number of lumens, the brighter the lightbulb.
WHAT’S A LUMEN?
Lumens measure how much light you are getting from a bulb. More lumens means it’s a brighter light; fewer lumens means it’s a dimmer light.
The brightness, or lumen levels, of the lights in your home may vary widely, so here’s a rule of thumb:
Picking the right bulb
The easiest way to figure out what bulb you need is by using an incandescent/LED conversion cart.
Say you normally use a 60-watt incandescent bulb, for example. You would probably want to choose an LED bulb that uses 8 to 12 watts and has a lumen rating of 800 to get the same illumination. This conversion chart will help you find an LED bulb similar to the incandescent you’ve been using: