Save Energy30 LED lights with 2V 70mA solar panels, 1 AAA battery included. If there is enough sunshine, the solar lights will be fully charged within 4-6 hours. It will light up for 6-10 hours when fully charged. Waterproof DesignUpdated stainless steel cover and O-shaped silicone sealing ring prevent the rainwater from penetrating the glass, so you can use it outdoors when it rains. Easy OperationEach lamp has an ON/Off switch under the cover. Slide the switch to the "ON" position before charging with the solar light. These solar lights turn on/off automatically. The light does not turn on in daylight. Smart DesignWith the built-in light sensor, slide the switch to "ON", the lights will turn on automatically when the light goes out. will turn off and on during the day. No wire needed, really eco-friendly, save electricity bill. Perfect for any occasionThe very popular mason jar light creates a warm and charming atmosphere in your garden, patio, lawn , your Christmas party, your wedding, your receptions, formal events and barbecue, on the trails and ponds.