LED flame design recreates the movement of a real flame. WEATHERPROOF so these CAN be used outdoors! Plus they have weight to them so they won’t blow over! The battery Life up to 3 months and they use 2 "D" alkaline batteries (not included). High and low brightness setting flexible flame tip, 6 hour timer Uses 2 “D” batteries in Pillars and 3 “AA” batteries in Tapers and Votives. Battery life up to 400+ hours. Available in different colors, including your own unique color. Contact us for details.