This candlestick with bulb is a replacement for our 1506 series candles. Simply insert 2 AA batteries and screw on the base cap and the candle will light. Candle is equipped with an automatic timer that will stay on for 6 hours from the time the batteries are installed and the base cap is screwed on. Candle will then turn off for 18 hours. Candle will repeat the same 24 hour cycle (6 hour on, 18 hour off) every day until the base cap is unscrewed or the batteries die. Battery life is approximately 40 days
