the grave candle is for two months in continuous use and I did not even have to change the batteries so far. The light is similar to a flickering candle and is powered by 2 batteries Baby. Who does not want to replace every other day a real grave candle or can be found with this grave candle a really good alternative. I have the candle still charged additionally a grave lantern, on the one hand because of the appearance, on the other hand to protect the batteries in cold weather.