About this item Eco-friendly Energy: Solar powered oxygen pump, no extra battery and plug is needed. Environmentally friendly and economical. Battery: The solar panel has an operating voltage of 6V and a power of 2.5W, and is equipped with a 3.7V 1800mAh lithium battery. Adjustable Angle: Solar panel angle can be adjusted to get more sufficient solar energy. Solar Panel can be stuck into the ground or mount it on the wall. 3 Working Modes: It has three working modes, high, low and low, and you can choose different gears according to your needs. Multi-Purpose: Widely used for adding fresh air into various fish tank, pools, ponds, aquariums. .
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