How Many Lumens Are In A 25 Watt Incandescent Light Bulb

P w φ v lm η lm w lumens to watts table.

How many lumens are in a 25 watt incandescent light bulb.

Wattage to brightness comparison. If you want something dimmer go for less lumens. 40w equals 450 lumens 60w equals 800 lumens 75w equals 1100 lumens and 100w equals 1600 lumens. As a rule you ll replace a standard 75 watt bulb with an energy saving bulb of about 1100 lumens.

Examine the label of the led bulbs at the store. Replace a 75w bulb with an energy saving bulb that gives you about 1100 lumens. Some of the most energy to light efficient led bulbs are now reaching over 120 lumens in energy star tests. Since most household bulbs are 40w 60w 75w or 100w you may be able to memorize their equivalent lumens.

On the low end replace a 40 watt bulb with an energy saving bulb of about 450 lumens. Are you looking for an energy efficient replacement for your 25 watt light. Rely on new bulb labeling standards to show lumen output and help you choose the right brightness for your needs. On average an incandescent bulb produces around 14 lumens per watt compared to 63 lumens for energy saving compact fluorescents cfl and 74 for led bulbs.

Replace a 60w bulb with an energy saving bulb that gives you about. The power p in watts w is equal to the luminous flux φ v in lumens lm divided by the luminous efficacy η in lumens per watt lm w. In the table below you can easily see how much 25 watt in lumens is and which alternatives you can choose. Some of the common wattages vs.

For example to replace a 25 watt light bulb for a led lamp the amount of lumens must be compared. If you prefer brighter light look for more lumens. Watts to lumens calculator lumens to watts calculation formula.