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 Luminous Efficiency
Oct 13, 2017

With the improvement of lighting technology, Metal halide lamps (white light, halogen lamp, also known as tungsten halogen bulb, halogen quartz bulb, is a variant of incandescent lamp, the development of high pressure mercury lamps, made from high-purity quartz tubes, LED Signal Light quartz tubes filled with mercury, argon, LED Signal Light gallium iodide, Iron iodide and some rare metal halide. The tungsten electrode is sealed with a molybdenum strip to form a circuit, and a metal lamp holder leads the end. The biggest difference between halogen bulbs and incandescent lamps is that they are filled with some halogen elemental gas (usually iodine or bromine) in the glass enclosure of the halogen lamp, its working principle is: when the filament heats, the tungsten atoms are evaporated to the glass tube wall direction, when close to the glass wall, the tungsten vapor is cooled to about 800 degrees and combined with the halogen atom , forming the halogenated tungsten (tungsten iodide or tungsten bromide). LED Signal Light The tungsten halide continues to move in the center of the glass tube, again back to the oxidized filament, because the tungsten halide is a very unstable compound, the heat will be decomposed into halogen vapor and tungsten, so that the tungsten is deposited on the filament to make up for the evaporated part, through the regeneration cycle process, The lifetime of the filament is not only greatly prolonged (almost four times times the incandescent lamp), LED Signal Light but also because the filament can work at higher temperatures, resulting in higher brightness, higher color and higher luminous efficiency. However, because of the fluctuation of the power supply of the railway signal (AC170V-AC250V), the service life and luminous efficiency of the halogen lamp are also affected.

Semiconductor LED light-emitting diode lighting technology is a new type of green lighting industry developed in recent years. In the 1990s, with the invention of nitride led, LED Signal Light the luminous efficiency of LED had a qualitative leap. As a light source, the LED's advantages are embodied in three aspects: energy-saving, environmental protection and long life. LED does not depend on the filament heat to glow, the energy conversion efficiency is very high, it only needs the incandescent lamp 15%--20% energy consumption, compared with the energy-saving fluorescent lamp also only needs 40%-50% energy consumption. In the service life aspect, LED Signal Light the LED uses the solid package, the structure is firm, the life can reach tens of thousands of hours, is the fluorescent lamp life Number 10 times times and the incandescent lamp life nearly hundredfold. And because of the composition of mercury in the manufacture and use of fluorescent lamps and incandescent materials, LED Signal Light it can cause two pollution to the environment by breaking up the mercury in production and application.