Mutual-E-bike cable solutions, waterproof connectors. as a professional 4 pin waterproof plug and socket manufacturer and supplier in China, all the 4 pin waterproof plug and socket have passed the international industry certification standards, and you can be completely assured of quality. If you do not find your own Intent 4 pin waterproof plug and socket in our product list, you can also contact us, we can provide customized services.