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In this article, we will explain the basics of how different switch configurations work.  We will cover the common terms such as SPST, DPDT, MOM, (ON), I-O, and more.  When you need a switch, the first thing you will find is that there are a lot of switches to choose from.  There are rocker switches, toggle switches, slide switches, button switches, rotary switches, pull switches, and more.

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When selecting the correct size of a battery cable to power your electrical system or project, a few factors need to be considered.You should know what is the maximum amount of current your system will need, how long the cables need to be, and the cost of larger cables versus smaller cables.  When figuring out the length you need, you will add together the lengths of both the positive and negative cables to get your total length.

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In order for your automotive electrical system to perform properly, your wire must be sized properly based on the amount of current (amperage) the wire must carry, and the length that the wire needs to be. For example, you want to add some flood lights to your vehicle. The floodlights draw 15 amps of current. The length the wire needs to be to connect to the floodlights is 9 ft. Based on the chart above, you would want to use 12 gauge automotive wire for your floodlights.