What Is A Led Bulb And How It Works
Definition of a LED bulb and explanation of its operation, its history.
Glossary about LED bulbs.
How To Choose Light Bulb Technology For Home Lighting
Today, several types of bulbs are available on the market to equip your luminaires.
-The incandescent (traditional): Since late 2012, classified as too inefficient, conventional incandescent bulbs are banned from sale. In December 2008, the states of the European Union agreed to set up a timetable for the withdrawal of these bulbs.
-The halogen bulbs: They produce more light, light up instantly but have a reduced service life and high energy consumption.
-The compact fluorescent light bulbs (low consumption): In general, they emit less heat and consume less energy than incandescent bulbs. But the startup time of some bulbs is long enough to reach their maximum intensity (about one minute) and others are sensitive to multiple turn-ons / turn-offs. (Fluocompact 20W to replace a 100W incandescent bulb).
-The bulbs LED: They consume even less energy than CFLs, their lifespan is much higher and the LED spots will likely replace other types of bulbs. They are generally more efficient and also offer better luminous rendering and are closer to the daylight. (15W LED to replace a 100W incandescent bulb).
Everything About The Led Bulb
The light-emitting diode or LED lamp is an electronic semiconductor component that uses light-emitting diodes for illumination.
The Led Bulb In History
The LEDs appear in 1962. Initially, the LEDs are reserved for the LEDs of electronic devices (warning light in the appliance, indicator light for electrical appliances, etc.) then to road and urban signs (signs , Tricolor lights, etc.). LED technology is constantly progressing.
LED bulbs are now used for TV screens or computers. Today, by the assembly of several diodes, the LED technology makes it possible to equip a lamp for domestic use.
LED bulbs are increasingly replacing old “traditional” bulbs (incandescent bulbs or halogens). They are also starting to replace compact fluorescent bulbs. Their prices are falling and become more accessible to purchase.
Familiarize Yourself With The Technical Vocabulary of Led
Lumens (Lm): the lumen measures the amount of light emitted by the bulb that is to say the returned light.
Watt : unit of measurement for electrical power.
Candela (cd): the candela measure the light intensity perceived by the human eye.
Color temperature (K) color temperature indicates the shade of color broadcast.
-Yellow Hue / orange: “warm white” light or daylight (2300 K to 3200 K), light “light warm white” (3500 to 4500 K)
-White color: light “ivory white” (5 000 K to 6000 K)
-bluish color: light “cool white” industrial white (6500 K to more than 8000 K)
CRI (color rendering index): IRC measures the possibility that the light of A bulb renders the actual color of the objects.
The daylight index is between 80 and 100.
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