DC120 – emergency air pump (UPS)

The Resun DC120 is an emergency air pump for aquarium keepers who want aeration to continue during a power cut. It plugs into a standard 230V socket, so it monitors the mains supply continuously and takes over on battery when voltage disappears.

Why it matters

• The pump checks for mains voltage through its plug. When power fails, it starts working on battery without any manual action.
• Its battery supply lasts 8 hours of continuous operation, which gives time to restore power before the aquarium runs out of oxygen.
• When mains power returns, the pump stops running and goes back to standby, watching the socket for the next outage.
• It can supply air to an air stone or power a filter during an outage, which the supplier names as typical uses.

Specifications

• Model: Resun DC120
• EAN: 6933163302978
• Mains connection: plug for a standard 230V socket
• Backup runtime: 8 hours of continuous operation on battery
• Weight: 0.2 kg
• Included: Resun DC120 air pump, 50 cm air hose

What it works with

The DC120 is listed in the aquatics category under aeration, so it fits freshwater and marine aquariums that rely on an air pump or air stone for oxygenation. It is designed as a backup for a filter or aeration system that already runs from mains power. Tank size and airflow are not specified in the product data, so check them against your setup before buying.