CARiD provides General Specifications for this bulb, and to help you understand what each measurement category means, we've provided some helpful information in the paragraphs below. After the bulb general type code and color output information are listed, you will find other descriptors.
"LED Amount" refers to the actual number of light-emitting diodes contained within each bulb.
"Light Output" is a degree rating to define how many directions the diodes broadcast light wavelengths in. For example, most LED bulbs are set up to broadcast light in every possible direction around a circular origin point - these have a beam pattern of the maximum possible number of 360 degrees. Some festoon type bulbs that are designed to broadcast light on one side only have a beam pattern of 180 degrees.
"Color temperature" is measured in degrees on the Kelvin scale and also gives a general indication of where that bulb's color output falls on the spectrum range. Color temperatures over 5,000K are described as cool colors (blueish white) while lower color temperatures (2,700-3,000 K) are described as warm colors (yellowish white through red).
"Light intensity" measures a bulb's total brightness in lumens as perceivable by the human eye, and the "Operating Voltage" refers to the strength of the electrical system they were designed to run on - most automotive applications feature a range below and above 12 volts.
"Bulb size": This gives the dimensions of the bulb itself. A diameter measurement describes the distance from one side of the bulb through the center to the opposite side, the Length gives a measurement of how long the bulb is without the socket, and Full Length measures the length of the bulb and the socket together.
"Operating Current"- the amount of current (measured in amps) an LED bulb is designed to draw from the power source. For example, a rating of "330 +-20 mA" signifies 330 amps of operating current that may vary by 20 milli-amps (thousandths of an amp) higher or lower.
"LED Type" - describes the actual size and construction of diodes contained within the bulb themselves. For example, "SMD" stands for surface mount device technology which means an electronic component (diode) is mounted directly onto the surface of printed circuit boards instead of a traditional wire lead into a circuit board hole. A description of "5050SMD" refers to a diode measurement of 50mm x 50mm. A "Cree" brand diode signifies one that is mounted within a lens at the end of the bulb assembly, and an "Epistar" brand diode is a flush-mounted, flat diode along the bulb shaft.
"Output" - Brilliance of the light generated is expressed in watt numbers, as compared to an incandescent light bulb output. For example, a 100 watt output from an LED is equivalent to that of a 100 watt incandescent light bulb. In some high-powered LEDs, output is expressed as "1 watt", "3 watt", or "5 watt" when it is referring to the electrical power consumption of that specific LED operating in one specific product.
"CAN-BUS Compatible" - This indicates that a particular LED bulb is compatible with modern CAN-Bus data loop diagnostic systems, when properly fitted with an LED Load Resistor. Bulbs that are compatible will not cause "bulb out" error messages or other communication glitches because of their extremely low current draw.