Do you know about - looking Bulbs in a Whole New Light: Think Lumens, Not Watts!
Tech Lighting! Again, for I know. Ready to share new things that are useful. You and your friends.100 watt incandescent bulbs were scheduled to be banned from store shelves in the U.S. As of January 1, 2012. In mid-December, the compromise Federal funds included a quantum that denies funding to impose the 2012 ban. Even so, the phase-out is of All incandescent bulbs is inevitable. This record outlines how much energy incandescent bulbs use and how inefficient they are to alternatives.
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Let's clear up one myth about alternatives to incandescents right away. Many think the whole look and feel of lighting as we know it will change significantly when incandescent bulbs go away. This is only partly true, as lighting engineers are well aware that population are used to and generally prefer the warm amber light of incandescent bulbs to the pure white light of many replacements. In response, lighting manufacturers are adding measures to Led bulbs in single to make them more like the "warm light" of incandescent bulbs.
More importantly, population need to think about light bulbs in an entirely separate way in order to buy bulbs that meet exact functions. Most Americans value light bulbs in terms of wattage, and clearly most understand the unlikeness in light emitted from a 30 40 watt bulb compared a 100 watt incandescent bulb.
But watts don't measured by light intensity! Light intensity is measured by "lumens" (or luminous flux). Watts quantum how much electricity is used. The chart below compares watts (electricity used) versus lumens (light output) for incandescent, Cfl (compact fluorescent light bulbs), Leds, and halogen bulbs.
According to a container of one 100 watt incandescent bulb, the bulb emits 1370 lumens. A generic version said the bulb emits 1250 lumens. (Note: like Cfls, the operation of incandescent bulbs is negatively impacted by temperature extremes.)
Bulb Types and Lumens in case,granted per Wattage
Incandescent Bulbs
150 Watts supply 2,600 to 2,800 lumens 100 Watts supply 1,600 to 1,800 lumens 75 to 100 Watts supply 1,100 to 1,300 lumens 60 Watts supply 300 to 900 lumens 30 to 40 Watts supply 450 lumens
Compact Fluorescent Light Bulbs (Cfl)
30 to 55 Watts supply 2,600 to 2,800 lumens 23 to 30 Watts supply 1,600 to 1,800 lumens 19 to 22 Watts supply 1,100 to 1,300 lumens 13 to 18 Watts supply 300 to 900 lumens 8 to 12 Watts supply 450 lumens
Halogen Light Bulbs*
100 Watts supply 1,850 lumens 72 Watts supply 1,325 lumens
Led Bulbs
25 to 28 Watts supply 2,600 to 2,800 lumens 16 to 20 Watts supply 1,600 to 1,800 lumens 9 to 13 Watts supply 1,100 to 1,300 lumens 6 to 8 Watts supply 300 to 900 lumens 4 to 5 Watts supply 450 lumens
*Note: Halogen light is measured a bit differently than other bulbs. There also are separate types of halogens and the lumens per watt vary greatly. You need to read the facts on each halogen bulb package. Depending on the type of halogen bulb, estimates of lumens per watt vary greatly.
Like incandescent bulbs, halogens use a significant estimate of electricity to create heat along with light, causing the bulb's to become highly hot. Many experts appraisal that the "wasted" electricity that halogen use to create heat versus lights is comparable to incandescent bulbs.
Rules of Thumb When Purchasing Bulbs
Can you just say "Okay, I'll buy a 16 watt Led bulb or a 30 watt Cfl instead of a 100 watt incandescent bulb? To an extent, but not necessarily. All light bulbs' packaging is required to clearly state how many lumens the bulb produces.
The Us agency of energy (Doe) recommends consumers use the following as "a rule of thumb" when buying light bulbs.
"To replace a 100-watt incandescent bulb, look for a bulb that gives you about 1600 lumens. If you want something dimmer, go for less lumens; if you prefer brighter light, look for more lumens. Replace a 75W bulb with an energy-saving bulb that gives you about 1100 lumens. Replace a 60W bulb with an energy-saving bulb that gives you about 800 lumens. Replace a 40W bulb with an energy-saving bulb that gives you about 450 lumens.
Cost Efficiency of separate Lights
While incandescent bulbs are usually the least expensive, their inefficient use of electricity/watts is the traditional imagine why they are being phased out. In general, Cfls are the cheapest bulbs to purchase today. But they have determined negative features, which include:
Lumens of Cfls are negatively impacted by temperature extremes. Cfls contain mercury and are carefully dangerous materials for disposal purposes. Frequently turning Cfls on and off shortens their lifespan. Cfls are more fragile than Leds; Led bulbs have no filamentsLeds turn on immediately, where as many Cfls have a miniature delay when initially turned on Some Cfls emit a low buzzing sound very annoying to some population find; others can't hear the noise. The sound varies with Cfl manufacturers and the purpose for which it was designed..
The bottom Line:
Incandescent bulbs use inefficient, obsolete technology. By the end of the decade, they won't be man-made by China (maker of 90 percent of all light bulbs in the world) and won't be available at all within the Us and most other countries.
Note: multiple sources were used for this record including the Us agency of Energy. Some facts was "averaged" as facts varies greatly depending on the source and the date facts was compiled. Data was confirmed by looking at light bulbs at a major home center. We propose readers visit http://www.energysavers.gov/your_home/lighting_daylighting for more facts about energy efficiency of assorted light bulb alternatives and why incandescent bulbs aren't aren't the best choice.
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