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Newly Updated Circuit Projects:

How to Make a LED Flashlight Circuit

Last Updated on June 1, 2026 by Swagatam 13 Comments

White LEDs have become so common nowadays that even school kids today know how to use them for making simple LED projects. LEDs are typically used for illuminating purposes, the discussed circuit is also intended for similar applications. The post talks about how to wire LEDs and battery to make a simple DIY LED flashlight. […]

Filed Under: Lamps and Lights Tagged With: Flashlight, LED

Light Dependent LED Intensity Controller Circuit

Last Updated on June 1, 2026 by Swagatam 27 Comments

ambient light dependent fading led lights

In this post I have explained a simple ambient light dependent LED illumination controller circuit. The light fades or intensifies proportionately i response to the ambient light conditions. With brighter daylights, the LEd illumination gets softer and vice versa. The idea was requested by one of the dedicated members of this blog. Technical Specifications While […]

Filed Under: Lamps and Lights Tagged With: Controller, Dependent, Intensity, LED, Light

Diwali, Christmas 220V Lamp Chaser Circuit

Last Updated on June 1, 2026 by Swagatam 62 Comments

Diwalichristmaschasinglightcircuit

In this post I have explained a simple, compact, 220V, 120V transformerless light chaser circuit which can be used for illuminating 220 V mains operated lamps or bulbs in a sequential chasing manner. Main Technical Features The chasing or running lamp effect can be altered by means of pot controls. The system can be used […]

Filed Under: Lamps and Lights Tagged With: 220V, Chaser, Christmas, Diwali, Lamp

10 Simple LED Chaser Circuit Diagrams Explained [Knight Rider, Scanner, Reverse-Forward, Cascaded]

Last Updated on June 1, 2026 by Swagatam 190 Comments

knight rider 2

In this article I have explained the construction of 10 interesting yet simple LED chaser circuits, which not only create beautiful running light effect but are also easy to build. We also discuss how to modify these into a design popularly known as “knight rider” chaser circuit. These primarily incorporate LEDs as well as mains […]

Filed Under: Lamps and Lights Tagged With: Chaser, Diagrams, Explained, Knight, LED, Simple

Blinking 3 LEDs (R,G,B) Sequentially Using Arduino Circuit

Last Updated on June 1, 2026 by Swagatam 6 Comments

rgb

In this post I have explained how to run or blink three LEDs in sequence using Arduino. The post was written and submitted by: Jack Franko PROGRAM/* make RGB LEDs to blink in series one by one at intervalof 1000MS */ int R = 12;int G = 11;int B = 10;void setup(){  pinMode(R,OUTPUT);  pinMode(G,OUTPUT);  pinMode(B,OUTPUT);}void […]

Filed Under: Lamps and Lights Tagged With: Arduino, Blinking, LEDs, Sequentially

How to Build a Grow Light Circuit

Last Updated on June 1, 2026 by Swagatam 7 Comments

growlightcircuit

In this post I have explained a typical grow light circuit application for plants in order to stimulate photosynthesis effect in an artificially lit environment using multicolored LEDs. The idea was suggested by Mr. Jack. The Circuit Objective I would like to donate to your site and pay you also for work you do on projects […]

Filed Under: Lamps and Lights Tagged With: Build, Grow, Light

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