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variety of LEDs
LED - Light Emitting Diode is a semiconductor light source.

Led diagram.gif


Different color LEDs require different voltages for powering them. Because of this, it is always best to check the part's documentation first. But as a general rule, the following are typical voltage requirements for ordinary through hole LEDs.

Color Voltage
Infared 1.5
Red 2.0
Orange 2.0
Yellow 2.1
Green (green plastic) 2.2
Green (clear plastic) 3.3
Blue 3.3
White 3.3
Ultra Violet 3.3


NOTE: All information contained within this article is pure opinion. Although this article is intended to help people, it may contain faulty or misleading information. This article is not to be considered professional opinion or advice, and is in no way a replacement for reading all safety/instructional documentation. Always remember to protect yourself when handling/using hazardous materials, as well as test new techniques before using them on projects/work intended to be handed in or used.

bildr and its contributers take NO responsibility for the information contained within.