This circuit converts sunlight into electrical energy. The fan speed is controlled by the intensity of the sun collect by the solar panel. This kit provides a rudimentary demonstration for how solar energy works.

Global Specialties GSK-1004 Solar Guide Light Kit illuminates 5 LED's when there is not sufficient sunlight for the solar panel to charge batteries. The LED's will automatically turn on and draw voltage from the batteries when the solar panel can no longer convert sunlight to DC voltage. Kit Includes parts to build recharging circuit, solar panel and intensity adjust potentiometer.

This is a blinking light circuit power by the energy of the sun. Utilizing a solar panel to convert the suns energy two LED's will alternatively blink and the blinking speed may be adjusted.

This is an excellent kit for introducing basic electronic principles. Two LED's will alternatively blink and the blinking speed is adjustable. Kit is easy to assemble with minimal components.

Global Specialties GSK-187 bipolar chopper stepper motor drive kit will drive bipolar stepper motors up to 2A per phase with a 9 - 35V supply. The kit features full and half stepping. All signals (Step, Direction, Enable) can be interfaced to external +5V logic or a micro-controller. Components and instruction manual included.

The GSK-2 LCD digital temperature meter kit has everything required to build a functioning 3 1/2 digit temperature meter including its own enclosure. The kit also includes a breadboard area built into the pcb, which can be used to build in a voltage or current meter. Perfect for educational experiments or for use as a process control instrument. Components, plastic enclosure and instruction manual included.

Global Specialties GSK-26 one-way fiber optic audio link kit allows the user to send sound through a 1mm "plastic" fiber optic cable. The kit includes 2 printed circuit boards, one for transmit and one for receive. The GSK-26's transmit circuit includes a microphone and a circuit to modulate the light emitted from an LED. The LED is contained in a plastic case that allows easy connection of the fiber optic cable. The receiver circuit includes a photo-optic receiver, an amplifier and a speaker. The GSK-26 is perfect for learning the operation of a fiber-optic communication link. Components and instruction manual included.

Classified as a remote controlled circuit this product uses an audio signal (clap on) to activate the on/off function of the switch. A sensitivity/volume controlled microphone picks up audio signal activating a relay generating an electrical signal to the switch.

Global Specialties GSK-61 is a versatile, general purpose panel meter kit allows the user to assemble a fully functional 3 1/2 digit meter. The meter utilizes LED displays along with 2 printed circuit boards to allow for end-on viewing. The GSK-61 is an advanced kit, which is perfect for industrial measuring applications and educational projects, and can be calibrate d to take measurements such as voltage , temperature, current, lux, etc.. Components and instruction manual included.

This kit contains parts to assemble a Lithium-ion Polymer battery charger. These batteries are becoming popular with radio controlled devices, iPods, MP3, and laptop computers.

Moisture Resistance Indicator Electronics Soldering Kit