Fluorescent Light Wattage Equivalent

Say you normally use a 60 watt incandescent bulb for example.

Fluorescent light wattage equivalent.

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. Choose between warm and cool light. A 9 watt fluorescent bulb in this case is equal to a 40 watt incandescent bulb. Linear t5 instantfit led tube light bulb daylight 5000k 48 in.

Around 20 to 20 watts in a fluorescent bulb is the same as 100 watts in an incandescent bulb. New led bulbs are available in cool white light which is ideal for task lighting and warm light commonly used for accent or small area lighting. While the math for the cfl bulbs is simple the led bulbs are even more energy efficient and durable than compact fluorescent light bulbs. If you are going to replace fluorescent light with led lighting you must take into consideration the color temperature.

Linear replacement universal fit led tube light bulb bright white 3000k 2 pack price. By contrast a high kelvin figure like 4000k means the color is cool and white in appearance. Instead of focusing on wattage which measures power or energy use manufacturers are indicating the brightness of their energy efficient bulbs according to lumens which measure light output. Lumen wattage comparison.

The easiest way to figure out what bulb you need is by using an incandescent led conversion cart. Read the package to choose desired illumination level. But as energy efficient low watt light bulbs like cfls and leds have become readily available watts have become an unreliable metric for selecting bulbs. Bulbs only come in certain wattages which make equivalent versions slight different.

Universal voltage t8 16 watt 5000k daylight linear led tube light bulb. The chart below illustrates the amount of brightness in lumens you can expect from different wattages of light bulbs. P w φ v lm η lm w lumens to watts table. Watts to lumens calculator lumens to watts calculation formula.

32 watt t8 40 watt t12 4 ft. Color temperature measurement is in kelvin k and most colors range from 2500 to 6500k a lower kelvin figure means the color is warm and tends to be closer to orange. Differences will also occur between types and sizes of light bulbs. Energy saving lamps have high luminous efficacy more lumens per watt.

Lps are more efficient than hps but emit a very dim yellow light. For example a 3w led is equivalent in output to a 45 w incandescent. Leds require less wattage than cfl for the same amount of light.