High pressure mercury lamps The mercury vapor lamp is a high-pressure gas discharge lamp further. The glass bulb of mercury vapor lamps, high pressure usually has an elliptical shape. Inside the bulb is a quartz discharge tube, the mercury vapor. Because there are two ...
High pressure sodium vapor lamps The high pressure sodium vapor lamp has a very high light output and is mainly used for street lighting. Inside a high-pressure sodium vapor lamp is a discharge vessel (burner), which consists of transparent alumina ceramics. The discharge vessel is ...
Fluorescent lamps Fluorescent lamps are now widely used because they have a much lower power consumption than equally bright incandescent lamps. They are available in light colors sunlight, cool white and warm white. Fluorescent lamps Design and function Fluorescent lamps are one ...
Incandescent lamps The Incandescent lamps (light bulbs) is probably one of the most important discoveries ever! Without it we would have no electric lights. Thomas Alva Edison (1847-1931) intended to make light from an electric current. Edison experimented with various materials as ...
Diode tester This diode tester circuit is very simple and can quickly determine the condition of a diode. The circuit checks for sure if a diode is open, shorted, or working properly. If lamp A lights, the diode is functional. When lamp-B ...
