, Solar and USB Dual Power Supply: The solar patio lights are specially designed as dual power supply. It can be charged with solar panels for 8 hours during sunny days. Also can be charged via a micro-USB port for about 4 hours if the weather is not good, which will allow you to use it anytime, anywhere , Waterproof & LED Battery Indicator: The outdoor string lights is commercial-grade waterproof design which can stand all kinds of weather. 4 LED battery indicator will always shows the remaining power of the battery(25%,50%,75%,100%) , 2 Options for Mounting: Solar string lights come with 8ft leading cable and 24ft lighted strings. You can place or mount the solar panel anywhere(please make sure the solar panel can get enough sunlight) with the included stake or screws , Auto On/Off & 4 Lighting Modes: With automatic light-sensitive solar panels, the solar patio lights will auto on at dark and auto off at daytime. There are 4 lighting modes, you can press the mode button to select 4 different modes to satisfy your diverse needs , Specification: 25PCS E12 sockets, 32ft long stand, solar panel extension line:4.3ft, lead cable:3.93ft, length between 2 bulbs:0.98ft, come with 1 extra bulb for replacement. ,