主要介绍了流水灯8个灯从第一个开始依次渐亮，直到最后一个。再从最后一个起渐暗，直到第一个。还有一种是所有的灯逐渐从暗到全亮，再由全亮到暗。-Introduces water lamp 8 lights from the first light began to turn gradually, until the last one. Since then fades from the last, until the first one. Another is that all the lights