Halogen cycle process is this: in the appropriate temperature conditions

tungsten wire evaporates from the filament in the area of ??cell wall material react with a halogen, a halogen to form volatile compounds. As the bubble wall temperature is high enough (250 o C), gaseous halogen compounds, halogen compounds when spread to the area around the hotter filament and tungsten halogen Shiyou differentiation. Released to return to the tungsten filament, and continue to participate in the halogen cycle. Fluorine, chlorine, bromine, iodine, can produce a variety of tungsten halogen regenerative cycle. The main difference between them is the desired temperature cycling reaction occurs along with other substances within the lamp with varying degrees of action now mass production of various bromine tungsten lamp and pad tungsten lights, some lights are also part of the use chlorine as a loop agent. In order to make the resulting halide lamp wall in a gaseous state, halogen wall temperature is much higher than ordinary incandescent lamp. Accordingly, tungsten halogen bulb sizes will be much smaller, you must use high-temperature quartz glass or hard glass. As bulb size, high strength, light allowed on the high pressure, high temperature combined, the operating pressure within the lamp is much higher than ordinary light bulb inflator. Since the evaporation of tungsten halogen being more potent inhibition, while halogen cycle eliminates the bubble shell black, filament temperature and luminous efficiency can be greatly improved, and the lamp life can be extended accordingly. Divided into the main voltage halogen halogen (220V-240V direct access to power) and low-voltage halogen lamps (to be equipped with the appropriate adapter) are two low-voltage halogen lamps have a relatively longer life, safety performance lamps advantages. Choose halogen tips: color temperature of light, life, security, and whether filters to remove ultraviolet light.In 1959 it was discovered after the halogen cycle principle produce halogen, it gives thermal radiation source has injected new vitality, this kind of lamp, small size, light maintenance rate of 95% or more, the luminous efficiency and lifetime were significantly better than incandescent lamps. In recent years, it has produced can be directly applied to the grid voltage 220V or 110V halogen lamps, and its size can be as small ?14 × 54mm, with a filament stability and shock resistance are excellent characteristics, transparent and frosted bulb two kinds of different specifications, internal fuse in line with IEC A32-2 standard, G9 type lamp is easy to join, its main technical parameters are shown in Table 1 below. In recent years has launched a variety of energy-saving halogen lamps new varieties, such as on the use of quartz foam shell coated TiO2 / SiO2 infrared reflective layer technology (IRC) made JD-and JDR Halogen type novel, by allowing visible light through, and the process of the infrared reflecting back to the filament, the lamp luminous efficacy of 30% -45% increase, the life of 3000h. Since halogen chromogenic particularly good, but small volume and easy decoration, so much people still favored and widely used.