Bo tells cause solar lights can illuminate different areas, solar street light uses the sun. It includes a solar panel, battery charger, rechargeable battery 250 watt sodium lamps bulk purchases, as well as from the LED light bulb composition. Depending on the requirements and model selection, it can be a small independent unit with the best quality 250-watt sodium lamps, or it can be a large system. In the latter case, the machine has a large solar panel, a large battery. Battery-powered lamps used in many work at night. Kaiyuan solar street below the components of the system manufacturers to introduce solar lights: solar energy is an inexhaustible, clean energy, and if oil to calculate solar radiation to the Earth approximately equal to 2.5 millions of barrels per day of oil . Therefore, solar energy is a huge source of energy. When it comes to the use of solar energy, mainly by two types of 250-watt sodium lamps, there are active and passive. Wherein the active use of mainly using photoelectric conversion, the passive use of that light and heat conversion. Solar street light with vast solar energy resources, where the sun can recharge the battery plates, reconverted to electricity to provide energy at night. Solar street light how complex and expensive pipeline laying is not required, compared to traditional lights safer, more convenient and more energy efficient. Typically solar street lighting system is composed of multi-chip or single-chip panels, controlled intelligent light control or charge controller and solar street light control box, low pressure sodium lamp and rectifiers, batteries and pole components. Light efficiency of solar panels is good, wind. Battery box beautiful and practical, usually made of stainless steel. Place the battery and control box controller. Under normal circumstances, the solar system using the valve control sealed lead-acid battery, which is also known as "maintenance-free battery," is help reduce maintenance costs. The charging and discharging of intelligent control also control the cost of solar lights, to achieve a high price. Bo tells cause LED street light for the study has been uninterrupted, research on small series light source is also very concerned about the progress of the research can be largely reflected in the horizontal direction and development of the development of this industry, in the following articles and we talk about some of the research questions about the industry. Spectral energy distribution of the light source to a recent test showed the presence of spectral energy is mainly reflected in the impact on facial identification. One study varied by changing the LED light on the human face of vertical illumination changes to test facial recognition ability of different SPD LED light source. Previous articles have mentioned, emitting blue LED lighting is the human eye is damaging. For facial recognition, we found that too best 250 watt sodium lamps is where blue content is higher the more negative facial recognition, but is less favorable. When using LED lights long here that refers to the use of long life LED lights, LED lights rarely talked about before the introduction of the life of the issue, of course, except street light pole, street light pole after the test is relatively simple, but the LED lamp life is estimated to relatively hard, professional and technical personnel to use IES TM21 and boundary function were to test projections, projections certainly there are some flaws, so now the research study, the test methods to test conditions for accelerated product life it will be more accurate. LED street light illumination range study involving two faces, a reflector cup model, one is irradiated surface. A lens reflector cup Riga, add the irradiated surface illumination grid. The researchers observed through the relationship between the size and half-light LED illumination, and to make a final judgment. What better 250 watt sodium lamps | cause | 250 watt sodium lamps cause by Henan Bo Lighting Equipment Limited. Henan cause Bo Lighting Equipment Co., Ltd. (www.zzdybcdj.com) is Zhengzhou City View light fixtures leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the cause of the leadership with the staff warmly welcome all inquiries negotiations to create the great cause of a better future.