Failures and Solutions of Solar Street Light, Solar Streetlight Common Fault

Table of Content

• The common faults are mainly as follows
• The structure and composition of solar street lights
• The working principle of solar street lights
• Problems&Reasons&Solutions
• Still have questions?

Solar-powered street light is a typical case of new energy application. Its green environmental protection, energy-saving, money-saving, and wiring-free characteristics make it widely used in roads, courtyards, squares, and other outdoor places all over the world, especially in regions and countries with abundant solar energy. Like other outdoor LED street lights and Solar Floodlights, solar street lights will inevitably have some failures due to long-term exposure to wind and sun during use. By this article, We will introduce the common failures of solar street lights and the troubleshooting methods.

The Common Faults Are Mainly As Follows

• Solar led street light is not working at all.
• The lighting time is too short.
• The solar street light always stay on during daytime
• Some led chips of led street light fixture is not working
• Solar led street lamp flicker
• Induction function failure
  The above faults and problems are often inseparable from the components of the entire solar street light system. To clearly know the cause of the failure and the solution, we must first understand the structure and working principle of the solar street light system.

The Structure And Composition Of Solar Street Lights

Solar street lights can basically be divided into traditional split solar street lights and integrated solar street lights. They all combine components such as high-efficiency solar panels, long-life lithium batteries or lead-acid batteries, high-efficiency LED street lights, and smart controllers into an independent system (integrated solar street lights often also include PIR human body induction Module, anti-theft mounting bracket).

Solar panels: The main function of solar panels is to convert light energy into electrical energy. It is one of the core components in the entire solar street light system. It mainly includes monocrystalline silicon solar panels and polycrystalline silicon solar panels.

• The photoelectric conversion efficiency of monocrystalline silicon is about 15%, and the highest is 24%. This is the highest photoelectric conversion efficiency of all types of solar panels, and the life span can reach more than 15 years.
• Polysilicon solar panels have great advantages in cost. The life span is more than 10 years.

Solar battery: The battery is mainly used to store electricity. Currently, the market mainly includes lead-acid batteries (AGM and GEL batteries) and lithium batteries (ternary lithium batteries and LiFePo4 Batteries). For the choice of batteries, you can refer to here.

Solar controller: The solar controller is a device used to control the photovoltaic PNS.

Solar street light fixture: the light-emitting part of the solar street light system. Composed of the LED light source.

Radar/PIR Sensor: This is mostly used in all-in-one solar street lights. It can better help solar street lights achieve energy-saving effects.

What types of battery is the best for solar street lights?

The Working Principle Of Solar Street Lights

Solar street lights use solar panels to receive solar energy during the day and convert them into electrical energy, which is stored in the battery through the discharge controller. The illumination gradually decreases at night. The charge and discharge controller detects this value and works, and the battery discharges to the lamp holder. After the battery is discharged for 10 hours, the charge-discharge controller starts, and the battery discharge ends. The main function of the charge and discharge controller is to control the lighting and correlation of street lights while protecting the battery and prolonging the service life of the battery.

After understanding the composition and working principle of the above solar street lights. We can better analyze common faults and corresponding solutions.

Problems&Reasons&Solutions

In summary, the failure of solar street lights is closely related to the components in the entire system. According to the specific failure performance to determine its cause and related solutions. 
Solar street light is not working at all

The lighting time is too short

Solar street lights always stay on during daytime

Some led chips of the led street light fixture are not working.

Solar street lights flicker

Induction function failure (mainly for Integrated solar street lights, or all in two)

Still have questions?

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