China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

Choice of road lighting should follow the principle: meet the lighting requirements of the standard at the same time taking into account energy conservation. View from the light source currently available, high pressure sodium lamp, high efficiency, stable performance, long life, affordable, color temperature and color rendering is able to meet the demand of the motor vehicle road lighting. Therefore, the urban road lighting products should be preferred high-pressure sodium lamps.

On the ballast, the ballast of the market is divided into three types: ordinary magnetic ballast, energy saving magnetic ballasts, electronic ballasts. Ordinary inductive ballast road lighting project by up to; energy saving inductance ballast is now promoting; electronic ballasts use less, but it has good prospects for development. Road lighting, from 150 watts to 400 watt high pressure sodium lamp, the ballast power attributable to the ratio of the lamp power are: the ordinary inductive type is of about 15%, energy saving and inductor type is about 10%, E-approximately 10 % or less. However, the development of electronic ballast technology is not very mature, only with less than 150 watts power lamps used in conjunction with, in order to achieve the desired effect. Therefore, the designer should be based on the specific circumstances of the city lighting engineering, as appropriate choice.

city street lights

At present, China has developed a high-pressure sodium lamp energy efficiency of limited value and energy efficiency rating “(GB19573-2004),” high pressure sodium lamp ballast energy efficiency standards of limited value and energy efficiency rating value “(GB19574-2004). In order to save energy, the builders should be selected to meet the standard of energy-saving light source and ballast. Lamps, conventional lights the efficiency above 70%. This figure lamps meet the light intensity distribution and glare control requirements under the premise. If the light distribution is inappropriate, Lighting efficiency is useless. Road lighting, aluminum sheet reflector lamps emitted light to go through the reflector and glass optical port transmission, the usually street light efficiency can reach 80%. It is more reasonable.