Powered by one single widely available & inexpensive CR-2032 Lithium-ion button cell, the Instapark LED tealight candle can stay lit for well over one hundred hours. And it"s a great value and ideal for weddings, restaurants and parties. Coming in a generous package of 12, these candle lights realistically generate flickering effect to simulate burning candles, better yet there"s no more black smoke or flame, nothing to clean up. The long-lasting LED bulbs have an average life time of 200,000 hours. What"s in the box: LED tealight candle: 12 CR2032 battery: 12 (installed) Spare CR2032 battery: 12 Note: Please remove the plastic insulation tape prior to use.