These candles like me quite well. They make quite a bright, amber light. They are a little wider and a little higher than normal tea lights. The candle body is illuminated with something. But that is not a disadvantage. The battery compartment cover on the bottom is provided with a snapper. Opening is possible without tools. A really big advantage over other LED tea lights, where the battery cover is closed with 1 to 3 Minischräubchen. Included is a CR2032 button battery. The on / off switch is black and also good to see in dim light.
The disadvantage is quite restless flickering light, as if the candles are constantly exposed to a strong gust of wind. Maybe you can but get used to it. I keep them in any case. But will still look for other alternatives.