STL is a series of small to medium-power Solar Street Lights with an split design that is both practical and aesthetically pleasing. The solar panels are made from power station level photovoltaic panels,providing higher photoelectric conversion efficiency. Utilizing automotivegrade lithium batteries which have a longer lifespan and greater capacity, enabling the lights to operate normally even during consecutive rainy days. Additionally, the lights have a professional optical lens design that directs the light to the ground, rather than leaving it suspended in the air. There are also Grid-interacted system and IoT function and so on. An optional version that can charge and discharge below -30 degrees Celsius is also available.