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Ambient: The surrounding light level in a given area. It is also the temperature in which a LED light source is expected to operate in.
Amperage: The strength of an electrical current measured in amperes. The higher the amperage number, the higher the ability to place more devices on a circuit that will be driven by that amperage.
Amp: The basic unit of electric current, a typical household circuit carries 15 to 50 amps"
Bulb: A LED light bulb is a finished product that has the LEDs installed, electrical components installed and is ready to be used by the consumer. A LED light bulb is screwed in place, twisted and locked in place, pressed into sockets or contact terminals.
Bulb Base: The part of the bulb that is used to set it into place and to make contact with electricity. There are many types and sizes. Most common are E26/27, USA and European standard household size, or medium base as it often is called. This type of bulb also includes the PAR 20, PAR 30 and PAR38 types. There are MR16 and MR11 type base LED bulbs as well as GU10s.
Color Temperature: A measure of the color of a light source relative to a black body at a particular temperature expressed in degrees Kelvin (K).
Dimmer: 12vdc only. Used with LED lights powered by 12vdc - never 110/120vac. Will dim majority of 12vdc LED lights and a few 12vdc LED bulbs such as MR16s with the proper transformer/power supply. Dimmers are part of our LED control products.
Foot-Candle: The unit is defined as the amount of illumination the inside surface of an imaginary 1-foot radius sphere would be receiving if there were a uniform point source of one candela in the exact center of the sphere. Basically, the amount of light that a single candle would provide to a 1ft. radius sphere.
Intensity: is a measure of the time-averaged energy flux or amount of light striking a given area. For bulbs alone this is measured in terms of lumens while for lighting fixtures it is measured in lux (lumens/sq. meter).
L.E.D.: LED means light emitting diode. LEDs are a solid state device and do not require heating of a filament to create light. Rather, electricity is passed through a chemical compound that is excited and that generates light.
LED Cluster or Array: A group of LEDs set in a square, rectangular or linear pattern, and formatted to be operated at a specific voltage. They will always include two wires called leads. One is positive, the other negative.
LED Drivers: Are current control devices that replace the need for resistors. LED Drivers respond to the changing input voltage while maintaining a constant amount of current (output power) to the LED as its electrical properties change with temperature.
LED Strip: LED Strips are usually printed circuit boards with LEDs soldered to the board. The strip can be rigid, or flexible and without any enclosure to protect the LED and circuit.
Low Voltage: With LEDs, that means 12vDC 24vDC or 48vDC, as opposed to 110/120vac which is high voltage. With LEDs, low voltage is commonly 12vdc sometimes at 24vdc.
Lumen Maintenance: How well a LED light bulb is able to retain its intensity when compared to new.
Lumens: The unit of luminous flux in the International System, equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions.
Lux: Typically used to measure the light intensity produced by a lighting fixture. The higher the lux reading the more light the lighting fixture is producing over a given area. Known as lumens per square meter
mA: Stands for milliamp. 1000mA equals 1.0 amp.
Max Rated Temperature: , or Operating Temperature is the ambient temperature where the LED light source is installed at and should be maintained at. In most case that is around 40-50° Celsius. That is comparable to 104° F to 122° F. Operating a LED light source beyond the Operating temperatuyre will lower the LED's life span or kill it.
MCD: or Millicandela, is used to rank/denote the brightness of an LED. 1000mcd is equal to one Candela. The higher the mcd number, the brighter the light the LED emits.
Operating Life: Usually refers to the number of hours a specific type of LED is expected to be operational. With high powered LEDs, that usually means life after it loses 10-15% or more rated output after 1000 or more hours of run time.
Power Supply: and Transformer and Voltage adapter apply to the electrical conversion of 110/120/240vac line power into 12vdc that will then be applied directly to the LED light product. Power Supplies are rated according to the current/amperage load capacity each will handle. It is an electrical or electro-mechanical device and is sometimes referred to as a LED Driver.
RGB: RGB stands for Red, Blue, Green, the 3 primary colors that make white light and all other colors. It can be a pre-programmed 7 color automatically changing LED bar or strip that is non-adjustable.
SMD/SMT: A type of low profile LED that is surface mounted to a PCB. These type LEDs are very powerful and range in lumen output from 35 up to 170 lumens. With the latest LED technology being applied today, these have shown to have the most promise in delivering light levels and coloring that we are used to having. Those smd LEDs we talk about, use and sell are in the .5 watt, 1 watt, 3 watt and 5 watt power range. When you see a 7 watt or 9 watt LED light, it will contain 1 watt LEDs x 7, or 1 watt LEDs x 9, or 3 watt LEDs x 3.
View Angle Degree: Also referred to as directivity, or the directional pattern of a LED light beam. The expressed degree dictates the width of the light beam and also controls to some extent, the light intensity of a LED. View angles range from 8 to 160 degrees, and are provided through the use of optics, special lenses made to colimate light to into a desired veiw angle.
Voltage: The rate at which energy is drawn from a source that produces a flow of electricity (amperage) in a circuit. The difference in electrical charge between two points in a circuit is expressed as volts.
Volts: The International System unit of electric potential and electromotive force, equal to the difference of electric potential between two points on a conducting wire carrying a constant current of one ampere when the power dissipated between the points is one watt.
Waterproof: meaning the LED product can be submerged into calm water but there is a limited depth as stated for each specific product, and must be specifically stated for "submersion". It also means that the product is made to withstand water being splashed onto it like rain, or having snow on it.
Watts: The unit for measuring electrical power. It defines the rate of energy consumption by an electrical device when it is in operation. The energy cost of operating an electrical device is calculated as its wattage times the hours of use. In single phase circuits, it is related to volts and amps by the formula: Volts x Amps x PowerFactor = Watts.
Watt per LED: It can be confusing when two watt numbers are used in product specifications. For the application to smd high powered LEDs, the 1 watt, 3 watt, 5 watt, etc, refers to the power consumption of that specific LED installed in that product. The watt numbers expressed as light output are a comparison to an incandescent light bulb light output, eg; a 60 watt light output is equal to a 60 watt incandescent light bulb. The Watt Output is equipment measured.
Weatherproof: Meaning the product will take water splashing and high humidity without deterioration to the LED or circuit. LED product cannot be submerged into water.
White: White is defined by Kelvin Temperature or Degrees Kelvin. Most will say that a Kelvin Temperature of 6000k plus is white. 5000k -5500k is daylight/sunlight white. At 4200k-4500k, it is called cool white. At 2800-3300k, it's warm white, which is the color temperature most incandescent light bulbs emit.
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