Product working mode: 1- Position 1: high speed (indicator constant on in green ) ? 2- Position 2: low speed (indicator constant on in dark blue ) 3- Position 3: work 10 seconds and off 10 seconds circularly (indicator constant on in light blue) Specifications: Material: ABS Solar panel:2.5W, PET laminated Battery:3.7V 1800mAH Product working voltage range:3.0V-4.25V Discharge protection voltage:3.0V Over charge protection voltage:4.25V Max. Current: 450mA Noise: 60dB Waterproof: IP64 Min. Air Flow: 0.6L/min Working Time: Approx. 20 hours Oxygen Hose Length: 100cm / 39.37in Wire length: 3M / 118INCH Item Size: Approx. 19.1 * 17 * 2.7cm / 7.52 * 6.69 * 1.06in Item Weight: Approx. 533g / 18.82oz Package Weight: Approx. 656g / 23.16oz Package Size: Approx. 21 * 17.5 * 7cm / 8.27 * 6.89 * 2.76in Package List: 1 * Oxygen Pump 1 * Package of Accessory 2 * Air Stone 2 * Aquarium Oxygen Pipe 1 * Manual (English) Note: Pump working mode: works 5 minutes, then stops 30 minutes, and that cycle
