Improved Charging Efficiency: The larger size of the new solar panel - 6.5CM*7.5CM - results in a larger surface area to collect sunlight, increasing charging efficiency. This means that the unit can be charged faster and the lifespan of the solar outdoor string lights can be extended 150LED/15+2M solar outdoor string lights: The new copper solar string lights are equipped with 150 LEDs, which is 30 LEDs more than before, making them brighter. The length of the solar string lights has been increased from 10 to 15+2m (15m string lights + 2m cable), which can better decorate larger spaces Improved waterproof and durability: The new design of the solar panel incorporates screw holes on the outside of the waterproof ring, making it more waterproof and durable compared to traditional solar panels. This design prevents water damage and extends the life of the unit even in harsh weather conditions 8 working modes: There are two buttons on the back of the solar panel, one is on or off, the