General description The 5V HJ-111 Water Pump is a compact and efficient submersible pump designed for fish tanks and other household applications. With its ultra-quiet operation, it is perfect for maintaining water circulation without disturbing the environment. Technical specifications Power: 2W Voltage: 5V Head: 0.45M Flow rate: 150L/h Size: 4 x 4 cm Weight: approximately 71g Package Contents 1 x Water pump 1 x Oxygen regulating valve Other information