200 Lake Drive Glasgow, DE 19702 | 888-353-0303 | Fax: 302-369-0938 LIGHT EMITTING DIODES A diode is a specialized electronic component made with semiconductor materials such as silicon, germanium, or selenium. They contain two elec- trodes, one of which is referred to as the anode and the other as a cathode based upon the direction (charge) of electrons that they contain. This diff erence causes electrons to move from one layer to

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