When you receive these candles, each is wrapped in a plastic covering. The sticker on the bottom of the candles can be removed to access the batteries. The batteries are shrink-wrapped in a plastic that must be removed before engaging the battery. The candles have 3 Modes: On, Off, or Timer. When switch is in the Timer mode, the candles will be lit for 5 hours and then turn off automatically for 19 hours.

Each Candle uses 3 AAA Batteries (Included). Battery Life: Approximately 100 hours. 

Note:  As the outer shell of these candles is real wax, they can be susceptible to damage from heat.