Power Source: battery-powered Type of battery: 2xC(no included)Long Battery Life: 500 Hours Using: Chandelier, Table decor, Centerpiece, Led Candle Holder. Votive Candle Holder, Wedding Light, Gift, Products in full compliance with the ROHS and CE standard. Time Function: Automatic timer function, Set for 4 or 8 Hours, Activates for same time every day when set : 4H : 4 hours lights up, 20 hours off, automatically turn on at the same time on the next day. 8H : 8 hours lights up, 16 hours off, automatically turn on at the same time on the next day. OFF : OFF Remote Control Function: Use Remote can set2/4/6/8hours Timer, Or Brightness up or down. How to insert the battery?1. Open the battery compartment cover by pushing the latch back and removing the cover completely. 2. Insert 2 x C batteries into the battery compartment according to the polarity indicators inside the compartment. 3. Close the battery compartment cover by placing the 2 small tabs in the slots and pressing down to secure the latch. Customer Service: If there is Any question. Any Special requirement, Please contact us first. We always be here for you!