Light Emitting Diodes (LED) Specifications

Help with Light Emitting Diodes (LED) specifications:

Color



	Your choices are...
	Blue		LED output is blue.
	Green		LED output is green.
	Infrared		LED output is infrared. Also known as an Infrared Emitting Diode (IRED), it non-thermally produces infrared light.
	Multi-Colored		LED produces two or more colors.
	Orange		LED output is orange.
	Pink		LED output is pink.
	Purple		LED output is purple.
	Red		LED output is red.
	Ultraviolet		LED output is ultraviolet.
	Yellow		LED output is yellow.
	White		LED output is white.
	Other		Any other LED color not listed.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Wavelength


	Peak Wavelength:		The desired output wavelength of LED.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

Array


	Array? Courtesy of Hamamatsu Corporation USA		LEDs are packaged as multiples. LED arrays will contain a certain number of elements (LEDs).
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

More Specs


	Forward Voltage:		The forward voltage the LED operates at.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Forward Current:		The forward current the LED operates at.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Luminous Intensity:		The luminous intensity of the LED in mcd. The candela (cd) is the luminous intensity of a light source producing light at a wavelength of 555.17 nm with a power of 1/683 watt per steradian, or 18.3988 milliwatts over a complete sphere centered at the light source.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Optical Power Output:		The optical power output of the LED in mW.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Viewing Angle:		Dependent upon diffusion from the lens, usually the larger the viewing angle, the less bright the LED. Diffused types generally have larger viewing angles and non-diffused types have smaller viewing angles.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Color Temperature		Color temperature is a measure of the visual "warmth" or "coolness" of the light from the white LED. The higher the value, the whiter or "cooler" the light appears.
	Search Logic:		User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.

	Dual?		Two LED lamps in the same housing.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Bipolar?		Bipolar LEDs work even if voltage is reversed. Select models change color on reverse voltage.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Lens Type:
	Your choices are...
	Flat Lens Courtesy of Hamamatsu Corporation USA		LED lens is flat
	Domed Lens Courtesy of Hamamatsu Corporation USA		LED lens is domed.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.