AGPtek 24 PCS Flameless Smokeless Battery Operated Flickering Flashing LED Tealight Timer Candles for Wedding/Party Decorations -- Cool White (Batteries Included) Energy-saving, Flameless, smokeless and long lasting, zero carbon emission safe to use. No hot and dirty wax to deal with. Realistic light. Easy to use, simply switch on / off on the bottom to control the candle light. TIMER FUNCTION -- 6 hour on and 18 hour off, 24 hours cycle work. Without the trouble to turn it on and off every time.