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:
“Let the light be called Day so that men may grow corn or take busses.”
—Anne Sexton (1928–1974)
“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)