Provide an ambient glow to your deck or patio even on the breeziest summer evenings. These great looking portable lamps wont blow out in the wind. Candela rechargeable lamps stay lit for 5 hours and there is no danger of fire if left unattended. Use indoors or out, even in the bedroom. Intelligent circuitry makes them turn on automatically when lifted from the charging platter and start to recharge as soon as they are put back. Brightness=1 candle. Each set of 4 comes with a charger.