Have used several of these remote controlled candles. After 100 hours of operation, about 75% are still working. 25% switched off completely due to dead batteries. The ones that still worked were significantly darker than with fresh batteries. Note that I only used the remote to turn the lights on and off each day and left them on for about 8 hours each day. The photo shows one with a fresh battery and one that has been used for 100 hours.
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