E-mail: info@sanmak.com
Tel: +86-757-81248088
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Sanmak Lighting Co.,Ltd


Phone: +8615989038225

Fax: 0757-81248088-8065

E-mail:  info@sanmak.com

Website: www.sanmak.com

About Company

LED Signal Light Lighting Technology
Sep 26, 2017

With the improvement of lighting technology, metal halide lamp (white light, LED Signal Light referred to as halogen lamp, also known as tungsten halogen bulb, LED Signal Light halogen quartz lamp, is a variant of incandescent) developed by high pressure mercury lamp, made of high purity quartz tube The quartz tube is filled with iodide, argon, gallium iodide, iron iodide and some rare metal halide. The tungsten electrode is sealed by a molybdenum tape to form a circuit, and the metal lamp cap is used as a tip. LED Signal Light Halogen bulb and incandescent lamp is the biggest difference: that is, halogen lamp glass shell filled with some halogen element gas (usually iodine or bromine), its working principle: when the filament fever, LED Signal Light the tungsten atoms are evaporated to the glass tube The wall is moved, and when approaching the glass tube wall, the tungsten vapor is cooled to about 800 degrees and is combined with the halogen atom to form tungsten halide (tungsten iodide or tungsten bromide). LED Signal Light The tungsten halide continues to move toward the center of the glass tube and returns to the oxidized filament. Since the tungsten halide is a very unstable compound, it will re-decompose into halogen vapor and tungsten after heat, The filament's life is not only greatly extended (almost four times the incandescent lamp), but also because the filament can work at higher temperatures, resulting in more High brightness, higher color temperature and higher luminous efficiency. However, LED Signal Light due to the railway signal power supply fluctuations (AC170V-AC250V), the same impact on the halogen lamp life and luminous efficiency.

Semiconductor LED light-emitting diode lighting technology, is developed in recent years, a new type of green lighting industry. In the 1990s, with the invention of nitride LED, LED luminous efficiency has been a qualitative leap. As a light source, LED advantage is reflected in three aspects: energy saving, environmental protection and long life. LED does not rely on filament fever to light, LED Signal Light energy conversion efficiency is very high, it only needs incandescent 15% - 20% of energy consumption, compared with energy-saving fluorescent lamps only 40% -50% of the energy consumption. In terms of service life, LED solid package, LED Signal Light solid structure, life of up to tens of thousands of hours, is the number of 10 times the life of fluorescent lamps and incandescent lamp life nearly a hundred times. LED Signal Light And because of the manufacture of fluorescent and incandescent materials containing mercury components, in the production and use of rupture and overflow of mercury to cause secondary pollution of the environment.

Semiconductor LED light-emitting diode due to the manufacturing process and the characteristics of the semiconductor, pn junction temperature higher, the shorter its service life, LED Signal Light luminous efficiency attenuation serious. On the other hand, LED signal control circuit by the environment and electromagnetic interference, lightning interference and other factors, so that LED lights were delayed and off the lights and other phenomena, resulting in railways and other accidents. To this end, we conducted a number of tests and modifications, especially in the anti-17KV-35KV electromagnetic interference, anti-lightning interference, LED Signal Light the use of the environment, combined with the advantages and disadvantages of existing low-power LED railway lights, developed a high-power LED lights and halogen Lighting two-in-one control unit, cancel the existing filament transformer, LED Signal Light can control the high-power LED lights, LED Signal Light but also can be used in the existing halogen signal unit, do not change the original railway signal signal opening and control mode.