The fluorescent lamp is a gas-discharge light source in which the apparent brightness is mainly created using a phosphor driven by the ultraviolet radiation of the discharge.
The light output from the product is several times greater than that of simple incandescent lamps with similar power indicators.
In addition, the fluorescent lamp has a longer service life, which can exceed the period of operation of a conventional device by twenty times. This is possible with high-quality power supply, observing the restrictions on the number of switching on and off the device.
Fluorescent lamps can be bought in almost any store that sells lighting devices. The most widely used mercury gas-discharge devices of low and high pressure. The latter type is mainly used for arranging street lighting, as well as in large lighting installations.power. Low pressure devices are commonly used in industrial and residential areas.
The fluorescent lamp is widely used to create lighting in public buildings: schools, hospitals, offices, etc. With the advent of compact devices with an electronic ballast that allows you to insert lamps into ordinary cartridges, fluorescent products are becoming popular in everyday life.
Demand for devices is due to their characteristics. First of all, they have high luminous efficiency (a 20 W fluorescent lamp shines like a regular 100 watt one), a long service life (about 2000 to 20 thousand hours versus 1000 for a conventional incandescent lamp), as well as diffused light and a wide variety of shades.
It is more expedient to use devices to create general lighting in rooms with a large area. The products are most effective when used in conjunction with Dali systems that improve lighting conditions while reducing energy consumption by more than half and extending the life of the devices.
The fluorescent lamp is also widely used in workplaces, illuminated advertising, to improve the appearance of building facades, etc. Devices find their place in the backlighting of LCD monitors and TVs. A variety of products are plasma panels.
Luminescent devices have characteristic features related to the principle of operation. When the lamp is switched on between twoat different ends of the device, an arc low-temperature electric discharge runs through the electrodes. The lamp is filled with an inert gas and mercury vapour, which allows it to produce UV radiation that is not visible to humans. It is converted into light using the luminescence effect.
For more stable operation of devices, special ballasts are used for fluorescent lamps. They provide reliable functioning of lamps, eliminating buzzing and flashing, while reducing power consumption by a quarter.
