CONTROL SYSTEM FOR AQUARIUM amp;C

摘要

A control system, for an aquarium or other artificial habitat, includes a clock controlling energisation at least of artificial lights L1, L2 so that these are illuminated for a "daytime" period each day and extinguished for a "night-time" period. Only one of the lights may be illuminated for "dawn" and "twilight" periods. Other units, such as an air pump AP and a filter pump FP, may be controlled by the clock. IMAGE