About this item 8 Lighting modes & Memory Function : The solar string lights offer 8 modes to change, which are combination, firefly, wave, fading, chasing, fading slowly, twinkle and always-on. and build-in memory chip will save the last lighting mode till next mode lighting up. 4 Brightness Adjust & 3 Timing Set: With the remote control, you can easily set up the brightness (25, 50, 75, 100 %) and off timer (3Hrs, 5Hrs, 8hrs). Energy saving: String lights are upgraded with a bigger solar panel to receive more sunlight and a larger lithiumion battery (1200 mAh). Place the solar string lights where solar lights can get most direct sunlight possible, After turned on, can automatic control light and charging. Suitable for all kind of occasions: IP66 waterproof string lights can be used in outdoor and indoor perfectly, provide perfect and soft light for your home, garden, bedroom, road, yard, window, shops, hall, stage, especially as a Christmas tree decorated with lights can be to create a beautiful and romantic holidays. Warm Tip: Before first use, it is recommended to fully charge the solar panel for 8 hours; The solar panel can not exposed to other light at night, otherwise it may not light up. if you have any problem with the product, please contact us, we will try our best to help you solve the problem.