Reallite candles are battery operated, genuine wax candles. The flickering flame is identical to a lit candle. In addition to the on/off switch, flameless candles feature a ‘Smart Timer’. If set, the ‘Smart Timer’ will automatically turn the candle on for 5 hours and turn itself off for 19 hours (24h). Set the candle once and never turn it on or off again. No dripping, no smoke, no burns, no mess, no heat, no worries.