emergency light

Emergency Light.

A simple circuit that activates a light when the power is out. A version with a lightbulb and another with white LED light included. (6/25/2006)
Category: electronics circuits light homemade - Updated: 2009/07/23
disposable_camera.jpg

Fluorescent Light.

How to build a 4-Watts Fluorescent light using a disposable camera, powered by one 1.5 Volts battery. (5/29/2006)
Category: light diy homemade projects circuits - Updated: 2009/07/23
flashlight.gif

How Battery-free Flashlights Works.

It sound too good to be true. Let's see how these battery-free flashlights works. (5/20/2006)
Category: light circuits electronics - Updated: 2009/07/23
Two Transistor Led Flasher

LED Flasher Circuit - Flip Flop

The classic LED flasher flip-flop circuit. Two circuits using NPN and PNP transistors (August 2, 2009)
Category: circuits light - Updated: 2009/08/02
LED chaser 4017B 4017 NE555

LED Chaser.

A LED chaser using a CMOS 4017 and a 555. (5/28/2006)
Category: electronics circuits automobile light - Updated: 2009/07/23
disposable camera, strobo circuit strobe

Strobe from Flash.

After using a disposable camera, you can build a strobe light (flashing light) with one simple modification. (6/2/2006)
Category: electronics circuits light diy homemade - Updated: 2009/07/24
traffic light circuit, two ways.

Traffic Light.

A two-way traffic light using a CMOS 4017 and 555. To be used as toy only. (4/23/2006)
Category: electronics circuits light - Updated: 2009/07/23
LED flasher oscillator two transistors easy to build circuit schematic

Transistor LED Flasher

A simple LED flasher that uses only two transistors, one capacitor and one resistor. This basic oscillator can have other simple applications. (6/10/2006)
Category: electronics circuits light diy - Updated: 2009/07/23
usb led light schematic

USB LED Light.

A simply and easy-to-make circuit, useful when working with the computer at night. (6/8/2006)
Category: homemade diy computer light - Updated: 2009/07/23

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