Powered by rechargeable batteries, these tea lights produce an ambient glow that flickers like a wind-drawn wick for up to eight hours. An integrated microchip creates random, unique light patterns, and unlike typical candles that are easily blown out, these will remain lit outdoors. The amber LEDs produce the same aura and light as wax candles but without the open flame, allowing you to leave them on while you are in another room. Despite their brilliant shimmer, the silicone "flames" remain cool to the touch. Require eight hours to recharge. Includes six opaque glass tea light holders and a recharging base that plugs into AC. 3 1/2" H x 1 3/4" Diam. (2 oz.)