Question 1

What is the disadvantage of solar street light?

Accepted Answer

There are some disadvantages of solar LED street lights that limit their application, such as the high initial investment cost, the high cost of batteries; long rainy days affect normal operation; the battery life is shorter than that of solar panels and LED light sources, etc. In addition, since most solar street lights are not connected to the mains and the battery is very valuable, they are also easy to be stolen.

Question 2

How long do solar LED street lights last?

Accepted Answer

LED street light has a lifespan of up to 20 years if the LED chips and power supply do not fail (under normal use, the probability of failure is low). This is because the light decay of LED chips is low, and L70 can often be greater than 100,000 hrs, which is how the 20 years is calculated. In addition to considering the lifespan of LEDs, we also need to consider the lifespan of the battery for solar LED street light. Generally, the cycle life of the battery is ≥2000 times. If we calculate based on 50% battery power consumed per day (2000/0.5/365 is approximately equal to 11), then the solar LED street light can work for at least 11 years.

Question 3

Which type of solar panel is best for solar LED street light, polycrystalline or monocrystalline?

Accepted Answer

For solar street light systems, monocrystalline silicon solar panels are more suitable for most scenarios, especially for projects in high latitudes and rainy areas. The main reason is that they have high conversion efficiency (18%-22%) and certain conversion capabilities under weak light. It should be noted that the cost of monocrystalline silicon solar panels is also relatively high. Polycrystalline silicon solar panels are quite different from monocrystalline silicon. They are suitable for areas with limited budgets and sufficient sunlight. This is because they are cheaper and have stronger conversion capabilities under strong light. ZGSM believes that if your budget is sufficient, we still recommend monocrystalline solar panels. For example, in integrated solar street lights, their structural limitations also determine that they are more suitable. On the contrary, if the project budget is limited and the local sunshine is good, then polycrystalline solar panels are also a good choice.

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Solar LED street light guide – watts, battery and panel

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LED Street Light

Solar Street Light

Led Flood Light

Solar Flood Light

LED High Bay Light

High Mast Light

LED Traffic Light

LED Tunnel Light

LED Garden Light

LED Canopy Light

Led Bollard Light

Lighting Accessories

Smart Systems

Simulation Design

Smart Financing