1Air pump is small in size, light in weight, very convenient to carry and use, and simple to install.2Solar air pump is made of high quality materials, environmentally friendly, shock resistant and waterproof.3There are 3 different working modes for adjustment, high gear, low gear, low gear for 10 seconds and 10 seconds off. The correct working mode can be selected according to different needs.4Solar pump uses solar panels to absorb sunlight and then converts the solar energy into electricity. It is an energy saving and environmentally friendly product.5Widely used in various aquariums, fish tanks, swimming pools, pond, especially suitable for adding oxygen to increase oxygen in emergency supply.