Design a light traffic road lighting solar street light

If you choose 90 lm/W metal halide lamp, luminous efficiency actual need of the lamp power is: 8928 lm present 90 lm/W = 99 W, 100 W standard parts, can meet the requirements of illumination; Choose the scheme of solar panels to solar power of 100 W light source, load input voltage 24 v, because

if you choose 90 lm/W metal halide lamp, luminous efficiency actual need of the lamp power is: 8928 lm present 90 lm/W = 99 W, 100 W standard parts, can meet the requirements of illumination; Choose the scheme of solar panels to solar power of 100 w light source, load input voltage 24 v, due to the need to increase the ballast, the actual power consumption of about 110 w, work 8 hours a day. 5 h, load power consumption = 0. 11千瓦×8。 5H＝0. 935KWh。 The power of solar energy components required = 2. 4÷0. 935 = 0. 39千瓦( In Shanghai area 1 kw solar cell power generation 2 a day on average. 4千瓦时) , you can choose to 200 w solar cell component 2 pieces. Despite the power of solar cell is quite big, the above calculation is carried out with minimum requirements. In fact, the motor vehicle traffic road illumination requirements to much higher than the above calculation results. In order to meet this requirement, for expressway, the distance and welcome road, the main road to government agencies and large public buildings, city center or business center of the road, such as urban road lighting lamps and lanterns is usually adopted by September 12 m light pole, 250 - 400 w sodium lamp or metal halide lamp as light source of street lamp, 20 - intervals 30 meters to install a street lamp. If working 12 hours a day, LED lights, in accordance with the requirements for the design of street lamp power 3 - need to consume every day 4. 8KWH。 To illustrate this, now we only calculate a minimum for motor vehicle traffic road lighting solar street lamp solar battery power.