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Converting Ordinary Rice Bulb String Light to LED String Light

Last Updated on June 1, 2026 by Swagatam 12 Comments

In this post we study how to convert a rice bulb string light into an LED string light using some simply circuit modification. Circuit Concept Whether it’s during a  festive occasion or for mere decoration purpose, the Chinese rice bulb flashing lights have become  hugely popular nowadays These can be seen as multiple interlaced wire strings consisting of many different […]

Filed Under: Lamps and Lights Tagged With: Bulb, Converting, Light, Ordinary, Rice, String

Transformerless LED Bulb Circuits using Capacitors

Last Updated on July 19, 2026 by Swagatam 275 Comments

transformerless current controlled LED driver circuit

In this post I have elaborately explained how to build simple transformerless LED bulb circuits using many LEDs in series and powering them through current controlled capacitive power supply circuit. Safety Note: These circuits operate directly from mains AC voltage without galvanic isolation, meaning live components carry high voltage when energized. Standard electrical safety practices […]

Filed Under: Lamps and Lights Tagged With: Bulb, Circuits, Controlled, Current, LED, Transformerless

230 Volts Bulb String Light Circuit for Diwali and Christmas

Last Updated on June 1, 2026 by Swagatam 33 Comments

diwali 2

In this article I have explained how to wire tiny 12 volt flashlight bulbs into decorative string light for decorating houses during festivals like Diwali and Christmas. What are String Lights As the name suggests a string light is a wired lamp system in which many lamps such as bulbs or LEDs are joined together […]

Filed Under: Lamps and Lights Tagged With: 230, Bulb, Diwali, Light, String, Volts

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