How to save electricity? Halogen

How to save electricity? Halogen The design of a halogen lamp is not fundamentally different from ordinary incandescent lamp. The same tungsten spiral, ignite under the influence of electric current. But some features provided a lighting apparatus, which has significantly better performance.

The theoretical limit of 11,111,122. efficiency [/b] bulbs for about 15%, the real values - no more than 2-5%. Technically, it can be increased by raising the heater voltage and, consequently, the temperature of the filament. But in this case is greatly reduced service life of the appliance. Height voltage by approximately 20% increases the brightness of two times, but also reduces the life of dumps around the same twice.

The high pressure inside the flask and the presence in it of vapors halogens bromine and iodine can increase the temperature of the heater without reducing lamp life. Such lamps are called halogen .

Halogen bulb is much smaller than conventional incandescent lamps. Reducing the size was possible because of the lack of effect of vapor deposition of tungsten on the glass bulb. IRC halogen lamp bulb covered with additional material reflecting infrared radiation and dropping a visible, which saves about 45% of the energy needed to heat the filament.

By the operational characteristics of halogen lamps is the following.
1. Due to the high degree of heating filament 11,111,122. light radiation of halogen lamps on the parameters closer to the sunlight [/b] . Light bulbs practically does not distort color perception. The coefficient color halogen lamps 99-100 units stobalnoy scale, where solar radiation corresponds to the maximum rate.

2. The effectiveness of halogen lamps 20 - 50% higher than conventional incandescent 11,111,123. Respectively for the same values of reduced energy consumption at the same illumination facilities.

3. [b] Resource halogen lamps (estimated time of service in hours of work) a few times (3-5) higher than normal, but lower than that of fluorescent lamps
. Throughout the life of the "galogenki" retain stable luminous flux 11,111,123. , The best models it decreases only 1-2%.

4. Reduced the size of the bulb and use it for making thick-walled glass allows the lamp to operate [b] without using the standard socket
, Which meant most of the electrical lamps. For this reason, the replacement of conventional incandescent light bulbs with halogen is usually impossible.

5. Halogen lamps are available in voltage of 220 volts or 12 and works equally well as alternating and direct current. Low voltage lamps are used in special fixtures, equipped with step-down transformer or electronic inverter. It is possible to install a single step-down unit to a group of lamps. In this case, low-voltage network are assembled Large wires than for conventional wiring 220 volt, calculated on the same power consumption.

6. Some models of 11,111,118. fixtures [/url] and lowering devices allow brightness control (dimming) by changing the supply voltage. Using adjustment is not recommended 11,111,123. : An increase in voltage above the nominal value of 5-6% halves the lamp life. Reducing the voltage reduces the operating temperature and cause subsidence of tungsten on the glass bulb, a thinning of the filament and, just as in the previous case, reduces the life.

7. [b] Glass bulbs halogen lamps heated above 250 degrees Celsius
. At such temperatures, the slightest contamination of glass, such as fingerprints, burn. The combustion products cause blackening of the glass and contribute to increased local heating of the contaminated site, which can cause destruction of the lamp.