Description
Aquarium air pump runs on Built-in lithium batteries when it senses that electrical current is interrupted. It will switch from electric to battery operated automatically. It continues to work about 15 hours after electrical current is interrupted, the Power wil last about 30 hours if the air pump work uncontinuously, works for 10s and stops for 10s(PLS press the button with Chinese words “FenDuan” near the power button). The Air Pump will keep operating when electrical power is out and provides
