SOLAR POWER:Solar Panel collects sunlight to charge the batteries(included) during the day(ensure the switch is in"ON" position).Automatically turns on at dusk for up to 10 hours of nighttime illumination. Pls note this solar light is design for decor and it will not produce enough light.So it will not Perfect for use in locations where electrical supply is unavailable.Great for Outdoor Garden Courtyard Lawn. Durable,eco-friendly and reliable:no power cord required, no electricity cost, no conventional energy consumption; waterproof, corrosion resistant and can work outdoors in rainy days Make sure the button is in the “ON� position before change it in the sun.If the button is in “on� position,keeping the solar panel in the darkness,then the lights will light up.Simply contact us if you ever have issues with your Skeitme lights Flexible & Easy Installation -Very suitable for decorating the Garden,Backyard,pathway,Flower beds,Fences,Roof,etc.It’s also an unique decor for Christmas,Halloween,Thanks Giving Day.