50W USB 3.0 Charging Hydropower Pipe Spiral Hydrogenerator Low Speed High Power Permanent Magnet Power Generation 15V DC5.5-2.1
USD 104.16USD 216.99
50W USB 3.0 Charging Hydropower Pipe Spiral Hydrogenerator Low Speed High Power Permanent Magnet Power Generation 15V DC5.5-2.1