Doing a Country Style track lighting.

Track lighting is another expansion in enriching our homes environment. It gives an extremely lovely lightning effect. One can change its brightening through a control unit in regards to the amount of light is needed. 

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Cheapest High power LED driver circuit schematic

There are many other articles on internet with simpler circuits but none of them are cost effective or as cheap as this one.
Using some easy to get cheap components you can make a much better LED driver than you would have thought of.

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Bipolar LED Driver Circuit

A Bi color LED is a special type of LED consists of two diodes connected in inverse direction to each other inside a package. A bi color LED generally consists of three terminals- a common pin and two separate pins. 

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