"-> 3 different light modifications (fast flickering, slowly flickering and constant light)"
It flickers fortunately neither fast nor slow (but we want for Christmas are not mistaken) and there is no constant light. Anyone who attaches importance to white light is wrong here. The modern unconventional spruce stand is very satisfied with the offered light impression and the kids like it too.
However, the plastic mixture used and the housing cap is very bad. Who does not go to work wisely during battery insertion destroys the very hakelige thread the cap or the cabinet. And the staples has already made another reviewer thought of me. To me it is indeed able to assemble a clip again, but it was possible that normally does not belong only tool for standard equipment of a German living room.
The burn time with a fresh set of batteries is fine. I (of course here at Amazon) a 40-pack R6 batteries for just over 11EUs ordered and thus the candles fitted about a week before Christmas, first again packed all the candles in the box and presented from time to time present visitors. On 23.12. The candles were then stapled to the spruce and light since at least 16 hours a day. So far, so they are about 50 hours of operation and if they join another two days which is perfectly adequate for me. Then get out of the batteries, the candles in the box and the tree in the oven ...
These candles appear identical or very similar to various other here at Amazon and his candles course offered in other stores where the China proper processing was criticized and even defective candles were now and then complained. Also I have two candles claimed as defective, obtain immediate response, answered two questions in order to clarify product details but unfortunately no longer receive compensation before the festival. Fortunately fall in the 30-pack, the two missing candles not on ...
Conclusion: With careful treatment (battery replacement, clamp fastening) a nice product that I recommend them.
small addendum on January 4, 2013: Now the batteries are already 12 days in the candles, so have about 150 hours behind the things still shine. Super, better than expected ...
