The anode is an electrode in which electricity moves into, whereas the cathode is where electricity flows out of in the opposite direction.Here are some key differences to keep in mind when understanding cathodes and anodes: It is a source of a positive charge and acts as an electron acceptor. Even though it attracts a negative charge, an anode is a positively charged electrode. ![]() The cathodes help to generate electrons, and therefore also help to generate charge that moves from cathode to anode.Īn anode is where oxidation occurs. While it attracts positive charges, the electrode itself is negatively charged. A different term for the positive polarity charge is a cation. Another way to look at it is the cathode attracts a positive charge. There are never ending possibilities for how you can use LED lights in your light fixtures.Ī cathode deals with reduction. When using LED lights in a fixture, you can have them as permanent bulbs, have them be made to appear similar in design to traditional light sources, and you can have them in the form of replaceable bulbs. Also, you need a combination of red, green, and blue in order to make white light.ĭue to their size, LEDs are great for unique designs and tricky lighting situations. If the light needs to be white, then multiple semiconductors must be used. Lights are typically green LEDs, red LEDs, and blue LEDs (common cathode RGB LED/common anode RGB LED). In order for LEDs to work on things such as video games and Christmas lights, they have to be different colors. This is huge, especially compared to incandescent light bulbs, which actually release 90% of their energy through heat.
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