Do you have a bicycle..? why don’t try to build this circuit..?. Powered using battery 3-6V. This circuit will help the bicycle driver in the […]


This is the LED pilot light (or LED indicator) circuit. LEDs (Light Emitting Diode) part are interesting things. They only operate at DC supply within […]

Here is the circuit diagram of lantern dimmer / flasher designed by Tony Van Roon: There are two circuit modes: dimming and flashing. The flasher […]

The following is LED Flasher circuit which use 2 transistors for LED switching. The circuit works similar to flip-flop operation. Components List: R1 = 10M […]

This simple 220V light dimmer circuit can be used to adjust the brightness of mains lights. It also can be used to adjust the speed […]

This is a 220V LED flasher circuit which is intended as a reliable replacement to thermally-activated switches used for Christmas tree lamp-flashing. This a low […]

The following scheme is a courtesy light circuit you can use to delay an electronic device to be disabled. For example, you can connect this […]

Here’s the?3V lamp brightness controller circuit diagram used to control the brightness of the light bulb. You simply use the two AA or AAA battery […]

This is a very easy and simple LED flasher with only three components: a flasher IC LM3909, a LED indicator and an electrolytic capacitor. The […]

This is the circuit of LED color fade effect. Just like the name of the circuit, the light intensity of LEDs in this circuit will […]