When using the product for the first time, make sure that the switch is set to the ON position and put it in a sunny place to charge for 8 hours. 8 lighting modes8 different modes to choose :constant light mode, wavy changes, continuous change, flicker changes, slow flashing changes, brightness change, fantasy changes, flash changes. Press MODE the button convert 8 different flashing modes. Meet your needs for different situations. Solar Rechargeable batteryEquipped with rechargeable battery, this solar stake lights can work about 6-8 hours at night if fully charged during the day. Waterproof & DurableSolar lights have been proved can withstand bad weather. Waterproof class is IP65. Do not need to worry about them in bad weather. Auto On/Off Auto on at night and auto off at sunrise. It can work up to 8 hours when full charged. Perfect for home and garden lighting. Energy saving and environmental protection. Easy to installNo addition tools required to install. Decorate your outdoor space easily with these solar crystal ball lights Obasyhig 7M Solar Powered 50 LED Water Droplets Balls Decorative Lights in Yellow