Light Bulbs
On every label of light bulbs and tubes (including incandescent light bulbs, fluorescent lamps, LED lamps), you will find:
- the energy efficiency category from A to G
- the luminous flux of the bulb in lumens
- the electricity consumption of the lamp in watts
- the average life length in hours
According to the light bulb's electrical consumption relative to a standard (GLS or incandescent), the lightbulb is in one of the following classes:
| Light bulbs; relative energy consumption | ||||||
| A | B | C | D | E | F | G |
| <18–25% | <60% | <80% | <95% | <110% | <130% | >130% |
Class A is defined in a different way; hence, the variable percentage. These lamp classes correspond roughly to the following lamp types
| Lamp technology | Energy class |
|---|---|
| LED lamps | A |
| Compact fluorescent lamps with bare tubes | A |
| Compact fluorescent lamps with bulb-shaped cover | A–B |
| Halogen lamps with infrared coating | B |
| Halogen lamps with xenon gas filling, 230 V | C |
| Conventional halogen lamps at 12–24 V | C |
| Conventional halogen lamps at 230 V | D–F |
| Incandescent light bulbs | E–G |
Since September 2009, household light bulbs must be class A, with the exception of clear (transparent) lamps. For the latter category, lamps must be class C or better, with a transition period up to September 2012, and class B after September 2016.
Read more about this topic: European Union Energy Label
Famous quotes containing the words light and/or bulbs:
“Lift your eyes
Where the roads dip and where the roads rise
Seek only there
Where the grey light meets the green air
The hermit’s chapel, the pilgrim’s prayer.”
—T.S. (Thomas Stearns)
“The wide wonder of Broadway is disconsolate in the daytime; but gaudily glorious at night, with a milling crowd filling sidewalk and roadway, silent, going up, going down, between upstanding banks of brilliant lights, each building braided and embossed with glowing, many-coloured bulbs of man-rayed luminance. A glowing valley of the shadow of life. The strolling crowd went slowly by through the kinematically divine thoroughfare of New York.”
—Sean O’Casey (1884–1964)