In this post I have explained a simple automatic darkness activated switch for car head lamps and the DRLs, initiated by the ignition triggers. The circuit helps to save battery power and prevents unnecessary wastage of energy. The idea was requested by Mr. Vladnemir. Technical Specifications I would like to build switch for driving car […]
Lamp
Using Single Switch for Fog lamp and DRL Lamp
In this post I have explained an easy method of upgrading your existing car fog lamp switch such that it allows toggling both the fog lamp as well as the DRL lamps alternately, as per the owner’s requirement. The idea was requested by mk karthick. Circuit Objectives Am looking for a circuit which is directly connected […]
Lamp Outage Detector Circuit for Car Turn Signal
The O.E.M. turn signal flashing units installed in automobiles have two basic functions i.e. Flasher and Lamp outage detection. These flashers are usually built with an 8-pin IC like U2044B, U6432B etc. which are specifically made for automotive flashers. Designed and Written By Abu-Hafss Circuit Operation NORMAL OPERATION: -input = Square wave between 11.89V – […]
LED Lamp Circuit for Motorbike Headlamp
In this post I have explained a simple 21 watt LED lamp circuit module which can be used as a direct replacement for a standard halogen lamp used in motorcycles headlamp. LED vs Halogen Lamp The proposed “halogen” LED lamp replacement module image can be seen below: Conventional filament type halogen lamp is shown below: […]
SMPS Halogen Lamp Transformer Circuit
One of the best substitutes for traditional light transformer for halogen bulbs is the electronic halogen transformer. It can also be used with non-halogen bulbs and any other form of resistive loads that does not run on RF current. Written and Submitted By: Dhrubajyoti Biswas Halogen Lamp Working Principle The electronic halogen lamp transformer works […]
Automatic Food Warmer Lamp for Hotels
In this post I have explained a simple food warmer lamp timer circuit for restaurants and hotels which can be used for automatically switching OFF the lamps after a predetermined time whenever the food under the lamps are idle or in the absence of an interaction under the lamps, thus saving precious electricity. The idea […]




