How to choose the power of solar street lamp?
Disadvantages: the distance of energy saving lamp is short and the illumination can not be satisfied. Energy-saving lamp light generally 10-20%, energy-saving lamp life in about 8000 hours, the maintenance cost is high; the main comments: energy-saving lamp suitable for commercial lighting, Home Furnishing lighting and plant lighting, not suitable for road lighting. 2, street lamp energy-saving cabinet, the energy-saving equipment mainly through the reduction of the overall voltage of the line, to achieve the purpose of energy saving.
Advantages: simple installation, in the box after power according to the load size and the actual situation of the line tailored investment economy, energy saving ratio between 20-30%. 2 disadvantages: affected by the actual line voltage, the energy saving effect is not significant and unstable, if the line voltage environment is only 210, so energy-saving space is very small, and the end of the street may be in half on or off state. If the line voltage at the front end of the box is too high, the front part of the street lamp will be burned out. Thus, the harm to the light source will be great, and the maintenance cost will be high. In this process, due to the reduction of the voltage, the illumination will be correspondingly sacrificed". Comments: the above situation is the road Lantern Festival electric cabinet in the past two years in the process of street lighting energy-saving applications summed up the lessons learned. So far, this kind of energy saving law has been phased out. High power LED street lamp can achieve the purpose of high efficiency, energy saving, environmental protection, high color rendering and long life through a semiconductor light-emitting material.
The application of energy saving method for street lamp illumination analysis and comparison: 1. The working principle of energy-saving lamps: control the current through the electronic circuit, use the three primary phosphor to achieve the purpose of high energy saving ratio, high luminous efficiency and high color rendering index. 1, advantages: energy-saving lamps than high-pressure sodium lamp energy efficiency of more than 50%, light efficiency 70LM/W, price economy. 2, shortcomings: energy-saving light irradiation distance is short, the illumination can not meet. Energy-saving lamp light generally 10-20%, energy-saving lamp life in about 8000 hours, the maintenance cost is high; the main comments: energy-saving lamp suitable for commercial lighting, Home Furnishing lighting and plant lighting, not suitable for road lighting.
