efficiency solar panel: This unit uses solar power with an efficiency rating of 5%, ensuring effective conversion of sunlight into power for your oxygen pump. Mobile and compact design: Measures 205 x 140 mm, making it easy to carry on outdoor adventures or in situations where electrical access is limited. USB output: Integrated USB port allows compatibility with multiple devices, helping keep your oxygen pump charged and ready for use. Complete oxygenation package: Includes a 1 m USB power cable, two 1 m oxygen tubes, and two air stones to effectively improve oxygen levels in your fish tank. Use scenario: Outdoor fishing trips or camping where grid power is unavailable; the panel can run the oxygen pump to maintain aquarium oxygenation. Use scenario: Home power outages or remote locations where mains electricity is not accessible; use the solar panel to sustain pump operation. Use scenario: Temporary aquarium setups for events, travel, or portable displays, providing reliable oxygenation with minimal power requirements.