In short led and cfl as technologies do not have a difference in brightness intrinsically.
7 watt led bulb is equal to cfl.
We have loved cfl and their efficiency for many years already and they have saved us tons of energy and money but the led era is here and that means more savings and no toxic.
Estimates of bulb lifespan are projected since it would take about 6 years of continuous lighting to test.
For example a correct replacement for a 60w incandescent bulb would be a 15 watt cfl bulb 60 1 4 15.
Some manufacturers claim the new led bulbs will last up to 25 years under normal household use but this is not proven.
The trick is to understand the technology.
Brightness is determined by lumens.
We used the figure of 5 00 for a 60 watt equivalent led bulb as an average among lighting retailers.
Are led lights brighter than or equal to compact fluorescent cfl bulbs.
Some cfl and led bulbs will put their wattage equivalents on the box while many don t so this chart should help give you a good idea of how bright your new bulb is going to be.
Lumens is best described as the measurement of light.
Leds require less wattage than cfl for the same amount of light.
Cfl light bulbs vs led this equivalence is often the most difficult and tricky point to understand since it is usually not written in the lights boxes or prospects.