1. The service life of the battery should also be considered in the application of the whole street lamp system. The general battery is guaranteed for three or five years, but the general battery will not be fully charged after one year or even half a year. Some of the actual charging rates may fall to about 50%, which will affect the normal lighting at night in continuous rainy days, so it is particularly important to choose a better battery important.

2. Some engineering companies often choose 30W solar street light as the lighting of solar street lamps, but the quality level of LED lamps is uneven, and the LED lamps with serious light decay may reduce 50% of the illuminance in half a year. So we must choose an LED lamp with slow light decay, or choose the electrodeless lamp, low-pressure sodium lamp, etc.

3. The choice of the controller is often ignored by the engineering company. The quality level of the controller is uneven. The market price of the 12V / 10A controller varies from 100-200 yuan. Although it is the smallest part of the whole street lamp system, it is a very important link. The quality of the controller directly affects the component life of the solar street lamp system and the purchase cost of the whole system. First, the controller with lower power consumption should be selected. Second, choose a controller with high charging efficiency. Third, the controller with two channels of regulated power shall be selected.