Solar Street Lights Are Coming
Solar street lights are not new products. Usually, the system contains street lamps, solar panel, solar controller, batteries, arm, pole, wires and so on. You may find some projects in your city. They can save all electricity cost and resources. It looks like great. You may think we should use solar street lamps everywhere. However, why are they not so popular? 1. Why not so popular now The main reason is cost. When the power consumption of street lamps is 60 Watt, it needs 150 - 170 Watt solar panel and 2 units 80 Ah batteries. The cost is near USD 1, 000. If the power consumption is higher, such as 150 Watt, the cost will be a little amazing. Many countries can not accept the price. However, as traditional HPS street lights, the power consumption is usually 60W, 80W, 150W, 250W or 400W. So, the cost is high in most of cases. Many countries can not accept the cost. 2. LED technology In the past two years, LED street lights become more and more popular. They use LED (Light Emitting D