LED and Lamps

Practical Emergency Tube Light Circuit gives light when power goes OFF. This project uses few parts to make emergency light work well. Main parts are step-down transformer, pulse switch circuit and tube light. This tutorial teaches us how the circuit works and how to build it. Circuit Working: Parts List: Component Descriptions Quantity Resistors 680Ω […]

White LEDs are very common now for lights. They are used in electronics, car displays and home lights because they save power, last long and work well. But for long life and best work the power must be managed well. IC TPS61161A is special chip which is the LED driver for this job. It can […]

LED lights last long and use less power so more people like them now. This article for Designing a Simple 7W LED Bulb Circuit shows how to make and use a 7W LED bulb circuit. Parts needed for this circuit are 230V AC power, MOV, capacitors, resistors, bridge rectifiers, Zener diodes. Be careful! This circuit […]

LEDs (light-emitting diodes) are used in many things. They are strong, work well and can be used in different ways. In things like decoration or signals, changing LED brightness is important. This Simple Adjustable Brightness Control Circuit for LEDs uses BC547 NPN transistor, resistors, one preset (variable resistor) and a white LED to change brightness. […]

Making USB lamp by ourselves is an fun hobby. We learn electronics by using hands and be creative. This circuit is good project for beginner or anyone who want to learn circuit. This Simple DIY Guide to a USB Desktop Lamp Circuit is a useful project to learn basic about electronic. USB lamp uses power […]