1、Excellent PA66 Material: This waterproof end cap is made of excellent PA66 material, which is strong and wear resistant, not easy to be damaged, and has a long service life. 2、Rubber Ring: This waterproof end cap comes with a rubber ring which has a good seal and prevents water ingress. 3、Flame Retardant And Cold Resistant: This waterproof end cap is weather resistant, fearless of cold and heat, resistant to pressure and high temperature, and has a long service life. 4、Good Adaptability: This waterproof end cap can be used for microinverter AP systems, for Hoymiles HM 300, 350, 400, 700, 1500, 1800, for HMT 2250 6T, for HMT 1800 6T Deye T, for Deye T 600G3 230, for SUN800G3 230V00G3, for TSUN M800, M800, for Tsol, for Envertech, for Huayu, for Bosswerk or for TSUN Tsol. 5、Solid Galvanized Pin: This waterproof plug comes with a solid galvanized pin that is conductive, erosion and oxidation resistant.