In this post I have explained a simple transformerless SMD 5630 type LED tube light circuit which can be built by anybody for illuminating home interior cheaply. The idea was requested by Mr. Smeet. Technical Specifications I am a very big fan of your website and it has been much helpful to me in my […]
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LED Strip Light Dimmer Controller Circuit
In this post I have explained a simple IC 555 based PWM controller circuit which may be used for controlling the intensity of a specified LED bank or an 12V LED strip light. The idea was requested by Mr. Rajdeep. Technical Specifications Fantastic blog you have got. I learnt many things from your blog. I […]
Visible Light Communication Circuit [using InfraRed]
You can use this simple visible light communication circuit to send audio and digital information through infrared light, beyond a mile away, with extreme precision. By Sunil Rao The main features of the light communicator circuit can be understood with the following points: Output power = 5 millwatts Frequency Modulation Operation with 50 kHz carrier […]
Cube Light Circuits
In this post I have explained how to make simple yet fascinating cube light circuits, in which LEDs are connected inside a plastic cube to produce interesting illuminating effects. All the designs presented below are very simple to build and do not involve any complex microcontroller or Arduino coding. Why a Cube Because cube lights […]
Using UV-C Light Chambers for Disinfecting Humans from Coronavirus
A rather easy way of disinfecting humans and objects on a large scale and in public places could be by irradiating them with ultraviolet rays (UV-C), in special UV-C illuminated chambers or passages. This includes the pandemic COVID-19, which can be suppressed by installing and implementing these specially created UV-C germicidal lamps. The following article […]
Converting Ordinary Rice Bulb String Light to LED String Light
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 […]