If you prefer brighter light look for more lumens.
100 watt bulb lumens output.
Replace a 75w bulb with an energy saving bulb that gives you about 1100 lumens.
If you want something dimmer go for less lumens.
For example to replace a 100 watt light bulb for a led lamp the amount of lumens must be compared.
Dimmable from 100 to 10 these bulbs have a 200 degree beam angle to cast light in a wide area.
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Because lumens measure brightness and watts measure energy output there is no simple method for converting wattage to lumens.
Replace a 75w bulb with an led bulb that gives you about 1100 lumens replace a 60w bulb with an led bulb that gives you about 800 lumens.
If you prefer brighter light look for more lumens.
With energy efficient lighting like leds and cfls how many lumens are in a 60w bulb or 100w bulb depends on the lumen output of the bulb not its energy use.
If you want something dimmer go for less lumens.
The luminous flux φ v in lumens lm is equal to the power p in watts w times the luminous efficacy η in lumens per watt lm w.
Designed for bathroom vanities or anywhere a globe bulb is required these bulbs produce light equivalent to a 40 watt incandescent bulb yet only consume 10 watts of power.
In the table below you can easily see how much 100 watt in lumens is and which alternatives you can choose.
To replace a 100 watt incandescent bulb look for a bulb that gives you about 1600 lumens.
Energy saving bulbs such as compact fluorescent lamps and led bulbs that produce an equivalent lumens as the 100 watt incandescent bulb use only 24 to 25 watts of energy.
Rely on new bulb labeling standards to show lumen output and help you choose the right brightness for your needs.
Watts measure the electrical energy required to light a bulb while lumens are a measure of the brightness of the light produced.
Energy saving lamps have high luminous efficacy more lumens per watt.
φ v lm p w η lm w watts to lumens calculation.
To replace a 100 watt w incandescent bulb look for a bulb that gives you about 1600 lumens.
A 100 watt incandescent bulb gives off 1 600 lumens.
As a rule you ll replace a standard 75 watt bulb with an energy saving bulb of about 1100 lumens.
Replace a 60w bulb with an energy saving bulb that gives you about 800 lumens.
On the low end replace a 40 watt bulb with an energy saving bulb of about 450 lumens.
100 watt incandescent bulb 1600 lumens.
With new light bulbs shopping by lumens will be more important than shopping by watts when choosing which energy efficient bulb to purchase 40 watt incandescent bulb 450 lumens.