Lámpara de agua limpia de algas verdes para estanque y estanque de pecesNew upgrade: With timing function, it solves the problem of forgetting to turn on and off the light. It can be scheduled for 3 hours, 6 hours, 12 hours, 24 hours of circulation, for example, setting 3 hours, 3 hours per day, the other 21 hours is off, 24 hours a cycle. This water clean light help to clean the water and algae,such as Fish tank,swimming pool,pond, shoes,dog house clean and so on. Please Note that this light only clean the algae and