Kmini2 Series 20W Solar Street Light in Russia Rural Area

The Kmini2 Series 20W Solar Street Light Project in Rural Russia, located on the streets of Lugovskoye Village, was successfully completed and put into operation in 2025. It effectively addressed the challenge of nighttime lighting for local residents, earning high praise from both villagers and local officials.

Russia is a vast country with a sparse population. Many rural areas, such as Lugovskoye Village, have not yet been extensively connected to the power grid, resulting in a lack of nighttime road lighting and causing significant inconvenience for villagers traveling at night. Furthermore, with winter temperatures in the area dropping to around -30°C and snow accumulating year-round, visibility is often obstructed at night, making traffic accidents highly likely. Improving rural road lighting ( explore ZGSM LED lighting solutions for various scenarios ) has thus become an urgent local priority.

Addressing the core challenge posed by the local frigid climate, conventional lithium-ion solar street lights struggle to operate reliably in low-temperature environments, and the client explicitly rejected the installation of underground batteries. Consequently, our team of professional engineers conducted extensive discussions and testing, ultimately finalizing a customized solution: adding specialized insulation materials and heating components to the interior of the lithium-ion battery casing. When the ambient temperature drops below freezing in winter, the heating components automatically activate to warm the battery ( how to choose solar street light watts, battery capacity and solar panel? ). This ensures stable power output once the battery temperature rises above 0°C, guaranteeing normal streetlight operation while also protecting the battery during sub-zero conditions and extending its service life. Initially, the client purchased one 20W solar street light (equipped with a 120W/18V solar panel and a 48Ah/12.8V lithium battery) for field testing. After the test results fully met expectations, the client placed an additional order for five lighting fixtures, which were then fully deployed for road lighting throughout the village.( how to choose the best solar street light for your project? )

After the goods were successfully delivered, ZGSM maintained close and proactive communication with us, closely monitoring the performance of the lighting fixtures throughout the process. Since this was the first time this customized solution had been implemented, we were particularly concerned about its operational stability in low-temperature environments. During winter use, the fixtures provided ample illumination and charged and discharged normally, and we are very satisfied with the results. Local village leaders have also highly praised these 20W solar street lights, noting that they have helped address safety concerns for villagers traveling at night. By illuminating rural roads during cold winter nights, these lights have paved a safe path, ensuring that nearby residents no longer need to worry about their safety when traveling after dark.

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Project details:

ProductModelCCT/ OpticsQuantity
Kmini2 Series 20W Solar Street LightZGSM-LD20Kmini25000K/2M5pcs

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The optimal wattage for a solar streetlight is not a fixed value, but depends on a combination of factors, including the height of the pole, the width of the road, and the lighting requirements, to name a few. If you have this information, we can run a lighting simulation to confirm the optimum wattage of streetlights for your project. If you don't have this information, you can confirm the wattage by the height of the pole, e.g. 10-20W for 3-4 metres, 30-40W for 5-6 metres, 50-60W for 7-8 metres and so on.

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.

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.