[Improved charging efficiency] The larger size of the new solar panel - 6 cm x 8.5 cm - results in a larger surface area to catch sunlight, which increases charging efficiency. This means that the unit can be charged faster and the service life of the solar outdoor string can be extended.[Solar Outdoor String Lights] The set includes 2 newly upgraded solar string lights, the total length of the rope is 30M 300LEDs, and the length of each rope is 15M 150LEDs, which can emit warm light and create a romantic and elegant atmosphere. Each garland also has a separate 2M extra wire, enough length and brightness to increase the scope of decoration, meet your different decoration needs.[Improved Waterproof & Durability]The solar panel of the weatherproof outdoor solar string lights comes with a waterproof silicone ring to improve air and water tightness, resist rain and strong winds. The outdoor solar string lights use high quality copper wire, flexible and durable, don't worry about rust and break, worry-free outdoor use.[8 Working Modes]There are two buttons on the back of the solar panel, one to turn it on or off and one to adjust the working mode, which is very convenient for you to choose different decoration modes for different events to create a romantic atmosphere.[Indoor and Outdoor Use]Solar string lights can be used outdoors to decorate gardens, courtyards, balconies, trees, etc. It can also be used indoors to decorate vases, windows, living rooms, etc. It is an indispensable decorative solar string lights for Christmas, parties, family gatherings, birthdays, Valentine's Day, etc.(place the solar panel outside to charge)