The following LED circuit is a compact design using supplied with ac power. LED circuit is very useful as an indicator light on the AC power source voltage 100-240V AC.
LED circuit is quite efficient because it does not need to pay extra for the step-down transformers. However, LED circuits need to be stored in a plastic box for safe to use.
LED circuit is also quite resistant to voltage spikes and surges. As an indicator light should use bright LED colors, like blue and white.
