a 42 watt cfl give off 2800 lumens
About 80%. An incandescent bulb produces 12 lumens per watt, (15 for halogen) while a CFL produces about 60 lumens per watt.
Compact fluorescent bulbs are widely used because they use one fifth of the electric power to provide the same amount of light as an incandescent bulb. Incandescent: 12 lumens per watt Halogen: 15 lumens per watt CFL: 50-60 lumens per watt LED: 100 lumens per watt High-pressure sodium: 200 lumens per watt
Bulb brightness is measured in lumens which express the amount of light produced, while the electric power used is measured in watts. The typical efficiency of some different types of bulb is: Incandescent 12 lumens per watt Halogen 17 lumens per watt CFL (compact fluorescent) 50-60 lumens/watt LED (light-emitting diodes) 90-100 lumens/watt.
Depending on the brand, it will give about 18.000 Lumens and equals a 100W HPS lamp
Incandescent: 10-12 lumens per watt CFL: 50 lumens per watt.
a 42 watt cfl give off 2800 lumens
A 150-watt light bulb uses energy at the rate of 150 watts, when it's turned on.
A 23 watt cfl will give off roughly 1600 lumens. However that is only within a few inches of the bulb.
This is a bit less light than a 40W incandescent bulb (much less than a 9-watt CFL bulb, but twice as much as a 5-watt CFL mini-bulb).
Should be about 850 lumens. The same brightness is produced by a 15 watt CFL.
About 80%. An incandescent bulb produces 12 lumens per watt, (15 for halogen) while a CFL produces about 60 lumens per watt.
Compact fluorescent bulbs are widely used because they use one fifth of the electric power to provide the same amount of light as an incandescent bulb. Incandescent: 12 lumens per watt Halogen: 15 lumens per watt CFL: 50-60 lumens per watt LED: 100 lumens per watt High-pressure sodium: 200 lumens per watt
Bulb brightness is measured in lumens which express the amount of light produced, while the electric power used is measured in watts. The typical efficiency of some different types of bulb is: Incandescent 12 lumens per watt Halogen 17 lumens per watt CFL (compact fluorescent) 50-60 lumens/watt LED (light-emitting diodes) 90-100 lumens/watt.
It's about 600 lumens. The same brightness comes from a 12 Watt compact fluorescent light (CFL).
The number of lumens produced by a 34 watt bulb depends on the type of bulb. As a general estimation, a standard incandescent bulb produces around 400-500 lumens per 40 watts, so a 34 watt bulb would likely produce slightly fewer lumens, around 350-450 lumens. However, different bulb technologies such as LED or CFL can produce a higher number of lumens with lower wattage.
Depending on the brand, it will give about 18.000 Lumens and equals a 100W HPS lamp