Our LED candle is made of 100% purified paraffin wax, a LED sensor was installed inside, when the candle was lit, sensor was sprang to make LED wick start to work, then the body of the candle was changed from red to blue to green, and mixed to kinds of different colour, which present a dreaming circumstance; When the candle was blow out, colour changing of  candle body stopped. The wick inside candle was supported by recycled lithium battery which can last around 72 hours.