I had ordered initially 2x6 pillar candles and get fast and well packed. I liked them so much that I have spontaneously nachgeordet 2 more units a 6 candles ...... unfortunately, to test without a single longer. They are supposed to be for the Christmas season ... 4x6 = 24 ... say something like an Advent calendar. I then turned on the first test as a few evenings for about 3 hours .... unfortunately was already closing time ... nothing did more! So I had not imagined it. I have no idea how much they cost, "button batteries". But even if they amount to a pittance, I actually was not going every few days (I wanted then "burn" through the whole evening can) cross and to walk across the living area to replace the batteries. I am very disappointed, because even if these candles are quite reasonably priced, but I expect a decidedly longer service life. I have no choice than to buy new button batteries in quantities and replaced every few days. Too bad! I can not recommend under any circumstances for sale! Barbara Krämer