BEAM ANGLE:
Also known as beam angle distribution, helps illuminate a surface isotropically without a central hot spot. BEAM ANGLE: Also referred to as the directional pattern of an LED light beam, is the degree specifying the width of the light beam. The beam angle also has some control of the LED light intensity. Through the use of optics, view angles can range from 8° to 360°.
CORRELATED COLOR TEMPERATURE (CCT):
The measurement of the color appearance of light given off when heated to a certain temperature measured in Kelvin. Terms such as "warm" or "cool" are used to measure a light's appearance. Lights 3200 K and below are considered "warm" and 4000 K and up are considered "cool".
CHANNEL LETTERS:
These are usually internally illuminated metal or plastic letters used in exterior signage.
CHIP-ON-BOARD (COB):
Chip-On-Board technology is a specialized packaging solution in which one or more LED chips are directly mounted to the PCB and then encapsulated. COB provides better thermal dissipation than packaged LEDs (5 mm, SMD, etc.) and removes the need for this form of intermediate packaging.
CHIP SCALE PACKAGE (CSP):
A specialized packaging solution in which a large LED chip is mounted directly to a substrate without the need for additional sub-mount, providing better thermal dissipation, higher current densities, and no wire bonds. The phosphor is also evenly coated across all five sides of the LED chip.
DRIVER:
A driver is a power supply that is self-contained which has outputs that are similar to the electric features of a lamp. Drivers are used to illuminate sources and are similar to ballasts.
EFFICACY:
The measurement of the consequential output from an input, such as putting watts into an LED and getting light or lumens out. Efficacy measures the amount of light that is put out measured in lumens, produced by the amount of power, measured in watts.
EFFICIENCY:
Efficiency refers to lighting fixtures and their ability to reflect light out onto a specific area to be illuminated.
FIELD-EFFECT TRANSISTOR (FET):
Field-Effect Transistor amplifies wireless signals or weak signal amplification. The transistor can amplify digital or analog signals. FET is a type of transistor, which is a semiconductor device that strengthens electronic signals and electrical power.
GFI/GFCI:
A ground fault circuit interrupter protects people against electric shock from an electrical system. The GFI is a breaker that shuts down the power when it senses currents caused by ground faults, before damage can occur to generating equipment.
HO:
High Output is a brighter version than the standard model.
INTENSITY:
Intensity is how bright the light is and is correlated with the amount of visible light considering the spectrum and the beam width.
IP RATING:
The IP (Ingress Protection) number is made up of two numbers referring to the protection against solids and the other liquids, respectively. The higher the IP number the more protection it offers. It is used to identify the environmental protection of enclosures around electronics. Ratings are determined by certain tests.
K:
Kelvin Temperature is used to compare the colors of a light source when compared to a theoretical black body.
LAMBERTIAN:
Lambertian is light falling on a surface in such a way that it can be seen the same way from different angles. It is measured by the light per unit area.
LED:
Light Emitting Diode is composed of two different parts. The first is the p-region that has positive electrical charges while the second, the n-region, contains negative electrical charges. When current flows, the electrons move across the n-region to the p-region. This process releases energy and the distribution of this energy produces photons with visible wavelengths. Through the process of LEDs electrical energy is converted directly into light.
LED PITCH:
The center-to-center spacing between LEDs.