You might have already read about this interesting idea in many different sites. It’s about converting a dead CFL into a sleek LED tube light circuit. In this post I have explained the procedures with more details. How many times did you throw away a dead or over used faulty CFL unit into the dust bin? Well, we do […]
LED
Solving LDR Controlled LED Emergency Lamp Problem
The following post discusses the troubleshooting of an automatic LDR controlled emergency lamp circuit which was requested to me via email by one of the keen followers of this blog. I have explained about the issue and its solution. Technical Specifications Dear Sir, I am following you on your website and I thank you for your valuable […]
How to Make a Cheap LED Name Plate with Illuminated Back Light
In this post I have explained a simple method for making an inexpensive LED name plate with illuminated back light, which can be made by incorporating only 4 LEDs and yet acquire a dazzling back light illumination for the name plate. Introduction LEDs are no doubt gaining popularity by leaps and bounds and probably most […]
LED Fader Circuit – Slow Rise, Slow Fall LED Effect Generator
In the following post I have explained a simple circuit which can be used for alternately switching LEDs with gradual brightening and fading effects. Circuit Operation The circuit can be effectively used for generating spooky effects in idols, for example it can be used for illuminating the eyes of a Jack-o’-lantern during haloween celebrations. The […]
Using a Fan Dimmer for Controlling LED Intensity
The circuit idea I have I have explained in this article can be used for controlling the intensity of many LEDs through a ceiling fan dimmer switch unit. This circuit was requested by Mr. Joseph who wanted a simple method through which an ordinary home dimmer switch could be integrated with a chain of LEDs for controlling its brightness from […]
SMD LED based Emergency Lamp Circuit
An emergency lamp using SMD LEDs is able to generate illuminations with extreme brightness due to the high efficiency of the SMD type LEDs. Moreover, SMD LEDs also ensure the unit will be very compact and lightweight. The following post explains a simple circuit diagram of an automatic emergency lamp using 36 nos. SMD LEDs. The circuit […]