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[2013-05-08]
Through the spectrum required for green plant 600W sodium lamp ballast, can not only promote their growth, but also to extend the flowering period, improve the quality of fruits, to ensure that the greenhouse vegetables taste, but also of-season cultivation. The rational use of the plant growth lamp is not suitable for the growth of plants under conditions of breeding and growth, and can accelerate the breeding of crops and shorten the crop growth cycle, eliminating the occurrence of pests, diseases and abnormal fruit....
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[2013-05-06]
High pressure sodium lamp is a high performance high-intensity gas discharge lamp, the advantages of high luminous efficiency, long life, good light color, so widely used. With all of the gas discharge light source,high pressure sodium ballasts negatively V-I characteristic, that need to suppress the lamp current, and the need to start the gas breakdown voltage of 5 ~ 20kV. Bulky traditional magnetic ballasts, power factor is low (only 0.3 to 0.4), and the ability to adapt to the voltage fluctuations is not strong, the development of the higher cost of electronic ballasts instead of magnetic ballasts the general trend....
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[2013-05-03]
Dimming electronic ballast is divided into three manual transmission: 50% (125W), 75% (187W), 100% (250W) power supply voltage range wide, can work in the voltage range of 150V to 260V, can facesubstantial fluctuations in the supply voltage to maintain normal operation. With automatic protection function, metal halide lamps, sodium lamps during operation the unexpected, such as a lamp open circuit, short circuit, internal rupture or leak and the meaning of the line momentary power failure accident on electronic ballasts or lamps in the abnormal state damage, are equipped with automatic protection function, auto-ignite and longer power outages. Effective protection of lamps, light bulbs, while improving operator safety. Small size, light weight, installation is extremely easy to use. You do not need to reprovision the ignitor and compensation capacitor....
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[2013-05-03]
After 20 years of efforts, now some of the components integrated and specialized electronic ballasts manufacturing technology has made great strides in the low pressure discharge areas of fluorescent lamps, low-power energy-saving magnetic ballast(3W to 18W), has been almost completely replaced by electronic ballasts, smaller field of power fluorescent lamps (18W to 58W), electronic ballasts are constantly expanding share gradually crowding inductance ballasts for fluorescent lamps market. Although the implementation of the EU ROHS and WEEE directives, and these two instructions in countries around the world the response causes fluorescent electronic ballast manufacturing process caused many difficulties, and manufacturing costs will increase, but because of the fluorescent lamp electronic ballast its light weight, low power consumption, high luminous efficiency can be achieved without strobe and other prominent advantages in the area of low pressure fluorescent electronic ballast will still continue to expand its share....
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[2013-05-03]
From the cost analysis of the three-year run, 400W Metal Halide run systems, energy-efficient European standard metal halide lighting system operating costs have been significantly lower than the operating costs of the metal halide ballasts and American standard metal halide The lights running costs of the system slightly higher than the electronic ballast operating system....
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[2013-05-02]
The comparison of the performance / price and running costs of the 150W electronic ballasts and magnetic ballast:
(1)150W metal halide lamp is almost the same structure and parameters of the American standard and European standard. Electronic ballast and magneitc ballast lighting system is available from the following factors used to evaluate the three-year operating costs....
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[2013-05-02]
Electronic ballasts to achieve the requirements of the ROHS Directive, in addition to the plastic insulator and brass also need to meet the above requirements, the most difficult is the lead content in the solder, as we all know, when tin-lead reached 65% than the column / 35% solder characteristics. This grade of our current electronic circuit board solder commonly used solder, but in order to meet the ROHS Directive, have to give up such a solder. The other to meet the ROHS directive solder In addition to the high cost of welding temperature significantly improved, which makes the process more difficult then, but also easier to damage electronic components. Electronic ballasts also face a lot of difficulties to achieve the WEEE directive requires recycling of electronic components and circuit boards is a very difficult problem, although the technology has enabled the recycling of electronic ballasts achieve Weee directive, however, recycling pay consideration than magnetic ballast much larger....
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[2013-05-02]
In actual use, because of many reasons often require high pressure sodium ballasts installed in a place far away from the light, in this regard, as long as the magnetic ballast wire cross-sectional area is large enough, the lead resistance accounting for ballast equivalent impedance 0.5 % or less, almost does not affect the normal operation of the lamp, the distance up to 50 meters. The electronic ballasts output are a high frequency, so the output lead of the high-frequency inductive, up to 5 meters when the distance between the lamp and ballast....
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[2013-04-28]
In order to adapt to the different requirements of various occasions, the metal halide lamp the appropriate dimming is necessary in this regard is undoubtedly the best electronic ballasts can basically achieve stepless dimming, and inductive generally only form of stepped dimming electronic ballast more economical. However, the metal halide lamp dimming is restricted by its own characteristics, when the metal halide lamp at a smaller output power, luminous efficiency due to the low pressure within the arc tube of the lamp is significantly reduced. In terms of the quartz arc tube metal halide lamp power and significantly reduced (approximately 50% and the following output) light emitted harmonic line, the proportion of UV will be significantly exceeded, this phenomenon aspects of the lamp which emits visible light further decline in the efficiency of translucent glass lamps on the other hand, must take further measures to prevent the UV component is not exceeded in normal lighting....
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[2013-04-28]
A well-designed European standard metal halide ballast match with the metal halide lamp→ the highest optical conversion efficiency. American standard metal halide ballast ahead peak structure, the lamp current at the zero crossing interrupt time (OT) larger Therefore, under the conditions in the same power input to the lamp, the electrically → light conversion efficiency than about European standard metal halide lamp ballasts low of 0.5% to 2%....
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