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WARNING: Think critically while operating and or redesigning this system. Open electronic circuitry can be dangerous due to easily shorting circuits which can generate immediate and intense heat resulting in fire. This is only one example of ill advised use.
PURPOSE: This design is an example of low voltage lighting with 4 power LED’s. The LEDs are driven by an inexpensive electronic timer switched on and off the input voltage. The timer block outputs a 100 Hz square wave with a variable duty cycle 0-100% which controls the LEDs brightness.