
Product parameters: Cell type: 18650 lithium battery Nominal voltage/capacity: 3.7V 1800mAh Solar voltage: 6V 2.5W Solar panel current: 420mA Process: PET lamination Oxygen pump parameters: Air pump type: AC air pump Rated voltage: 3.5V Maximum current: 450mA Noise: 50dB Minimum air flow: 1L/min Circuit parameters: Operating voltage range: 3.0 V - 4.25 V Maximum working current: 450 mA Over-discharge protection voltage: 3.0 V Overload protection voltage: 4.25 V Working time: approx. 22 hours With or without light control: without light control Product weight: 0.65 kg Product size: 21.5 x 17.5 x 7 cm Working mode (mode): Mode 1: high speed (green light always on) Mode 2: low speed (dark blue light always on) Mode 3: Low speed. Open for 10 seconds and stop for 10 seconds. (The blue light is always on) Instructions for use: Connect the air stone to the exhaust vent to increase the oxygen content in the water. Expose the solar cells to sunlight. Make sure that no shadows enter the solar