1、内置水力发电系统，无需电池及外接电源，接通水源的瞬间，LED便会发亮；                                                                                                                                                                          2、带有开关控制，在接通水源候，开关可以打开和关闭LED灯，                                                                                                                                                                                                                                                                          3、在温控变化模式下。当水温在当水温≤32℃时，灯会发绿光，当水温在33℃～41℃的时候LED灯会发蓝光，当水温在42℃～45℃时LED灯会发红色的光，水温在≥45℃以上则LED灯会红色闪烁.