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LED Lighting Dictionary

Here you will find some information or definitions of the LED lighting lingo. 

We will continue adding words and terms as we progressively enhance our website.

Please feel free to contact us if you happen to encounter any discrepancies or anomalies.

We hope this helps you better-understand LED lighting. 



What is CCT or what does CCT stand for?  CCT in the lighting industry is the abbreviation for corelated color temperature. It defines the color presence of the light that is emitted by a diode (or led chip). It is measured in degrees Kelvin otherwise know as "K"(i.e. 2700K=warm white or 5000K = cool white). 



What are LED Daytime Running Lights or what is DRLDaytime running lights do not only play the role of lighting, but also to warn pedestrians and vehicles that a moving vehicle is approaching and in working condition. The aim of daytime running lights are to provide safety and you are welcome to use new products under daytime running light series. 


What is an E26 Base on a light bulb? It is the most common base on a light bulb. Mostly used at home. It is also known as "standard" or "medium base". The 26 represents the diameter of the base which is 26 millimeters. Many types of bulb shapes are also retrofitted to this type of base depending on what your needs are. Please feel free to contact us if you are looking for something specific but do not see it on our site. We will try our best to help you find it.  




What is a G9 light bulbA G9 LED light bulb is usually a very small bulb that looks like a pellet and contains looped prongs as conductors (Please see image below). The "G" stands for glass because they were originally made of glass (see image comparison below). The 9 indicates the distance between the prongs which on a GO is 9 millimeters. They are mainly used in small appliances and desk lamps. You may also find them being used in accent or under cabinet lighting. You will also find larger sizes available for industrial or commercial use. 



What is Gu24 base or socket?  GU24 socket or base is a bi pin socket fitting for compact fluorescent light bulbs or lamps otherwise know as "CFL" or LED Bulbs that use a base mount similar to a bayonet bulb where you twist and lock. They have now been retrofitted make almost any type of bulb compatible with a GU24 socket. A GU24 socket complies with a ruling by the California Energy Commission under Title 24, which is a California Building Standards Code, to require high-efficiency lighting on all residential remodels and new construction. The purpose of the pins and the twist-and-lock mechanism is to prevent an electrical shock since the contacts in the socket are not exposed as they are in other sockets like a medium base (E26) which is a standard household screw on socket.   






What is Kelvin count in lighting? Kelvin is a temperature scale. Color temperature of a light source is measured by Kelvin units. 


(Approximate kelvin ratings)

-Warm White = 2200K-3200K

-Moonlight White = 4000K-4500K

-Cool White (Bright White) = 5000K-6000K

-Daylight White = 7000K



What is an L.E.D? LED stands for light-emitting-diode. Invented by Mr. Oleg Losev, it is a semiconductor that gives off light when charged with an electric current. LEDs require low power to function therefore are the most energy efficient form of lighting. An LED can last for decades if it is installed properly. An LED is usually small and it used to only be installed in small electrical components like remote controls or indicator lamps for small electronic devices. Now LEDs are swiftly taking over the lighting industry and replacing incandescent and fluorescent light bulbs and lamps as they are far more energy efficient and do not pose as big a threat as old light bulbs when it comes to their disposal. LED light bulbs and lamps are now made in a variety of specifications depending on the need of your lighting project or application. 



What is an LED Rectifier? A rectifier will convert your AC input power into a DC output and at the same make sure that the polarity of the output remains consistent no matter what the input is. 

What is RGB LED? RGB stands for red, green and blue and when these colored lights are combined they can make millions of different hues of light. The most common RGB controllers are able to emit 16 different colors. You also have 44 button controllers as well as the touch-slide controllers which allow you to create many more fun colors with your RGB LED strip. 

What is LED Rope light? This pretty much self explanatory. LED rope light is a clear round pvc tube containing a string of lights within its length. It is mainly used for decorative purposes and can be used as indoor or outdoor lighting. There are 1/2" and 3/8" round rope lights, flat rope lights, 2-wire, 3-wire, 4 wire and even 5 wire rope lights depending on what your applications' needs are. Feel free to contact us at 213LED if you happen not to see the rope light which you are looking for on our site.  



What is SMD LED? SMD is the abbreviation of Surface Mounted Device. SMD LED = Surface Mounted Device Light Emitting Diode.   

What is an LED Strip light? This is pretty much self explanatory. It is simply a strip with lights on it (In our case, LED lights. Now on a more specific or technical term: An LED strip light is a bendable strip with circuits and LED chips on it. It is also called "tape light" due to the adhesive tape on the back of the strip which makes the installation of this product a very easy one. They are commonly used for back-lighting, accent lighting (bars homes and display cases) as well as task lighting (kitchen undercabinets or work stations). They can also be used as a decoration during the holidays or on display cases.  Lately (from 2015 to present), here in Los Angeles, they have been trending on small commercial establishment signs.