50W USB 3.0 Charging Hydropower Pipe Spiral Hydrogenerator Low Speed High Power Permanent Magnet Power Generation 15V DC5.5-2.1
USD 119.47USD 205.99
50W USB 3.0 Charging Hydropower Pipe Spiral Hydrogenerator Low Speed High Power Permanent Magnet Power Generation 15V DC5.5-2.1