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Terms to Know in LED Lighting Industry
Helpful definitions of the key LED lighting terminology to make your research easier
By: Accurate Technologies
· LED: LEDs, or light-emitting diodes, are a solid state technology that have no filament, glass envelope, gas, or mercury. LEDs produce light by the movement of electrons that results from applying an electric voltage difference across a semiconductor material.
o When looking at lighting and watts, you are not looking at how much light a bulb puts out when looking at watts, but how much energy a bulb uses to put out that amount of light.
· Lumens- In traditional terms a watt is a measurement of how much electrical power a device consumes.
o a lumen is a measurement of the amount of light that is contained in a certain area
o A much simpler definition of a lumen would be that one lumen is equivalent to the amount of light put out by one birthday candle when you are standing one foot away from it. If a light bulb puts out 100 lumens, imagine standing one foot away from a cake with one hundred birthday candles on it.
o Lumens are more accurate way of measuring the amount of light a particular bulb is putting out, because lumens are a direct measurement of light output
o The true measurement unit of luminous flux (or brightness) is the lumen (lm). Lumen measurements are an acceptable method to compare LEDs to traditional light sources.
o Lumens Per Watt- Similar to Miles/Gallon in a car
· Driver- A LED driver is a device that manages power and controls the current flow for an LED lighting product. What makes a driver different from conventional power supplies, is that an LED driver responds to the ever-changing needs of the LED, or circuit of LEDs, by supplying a constant amount of power to the LED, as its electrical properties change with temperature.
· Retrofit- A simple definition of a retrofits the renovation of your old lighting fixtures and/or bulbs that improves the lighting output and temperature of light all while emitting less heat and saving energy.
o Retrofitting traditional lighting fixtures harnesses the key properties that make LEDs unique. LED retrofit lamps are direct replacements for conventional incandescent, halogen, and compact fluorescent (CFL) lamps.
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