multi color LED candle; color auto changing; value candle engine; Available shapes and sizes: Pillar: 3"x3", 3"x4", 3"x5", 3"x6"; 3.5"x4", 3.5"x5", 3.5 ... ",3.5'x3.5"x6"; 4"x4"x4",4"x4"x5", 4"x4"x6" What Is the Difference Between A Single Color LED ... of above colors. A RainbowCandle is different. With the innovative LED color mixing technology, we can have many colors. For our RainbowCandle ...