NICOLAS HOLIDAY Window Candle - LED Battery-Operated with Built-in Timer GE New Style GE Battery-Operated LED bulb window candle. Dual-mode lighting Steady White or Flickering Yellow. Built-in Timer On 6 hours off 18 hours, Suction-cup included. The only battery operated window candle that can be seen from the street at night. Batteries will last for 2 weeks on steady white with 3 AAA Energizer batteries.