Premium Safety Material: Made of flame-retardant nylon PA66, fire protection class 94V2, certified by KEMA, ENEC, SAAUKCA, CE, ROHS. Dustproof, shockproof, durable, UV-resistant, acid and alkali resistant, safe to use in sun, rain, or snow. Bypass Connector: Comes with 3 different silicone gasket kits for both ends of the junction box. Connecting cable range: 10-14 mm, junction box length 139.71. Wiring range: 0.5 to 4.0 square millimeters; Operating temperature: -40°C to 105°C; Rated voltage: 450VAC. IP68 Waterproof Connector - IP68 standard is ideal for outdoor use. The silicone ring has a sufficiently moisture-proof seal. Now water, dust, snow, and other adversities can no longer damage the cable ends. Because IP86 certification makes everything waterproof. The connector is ideal for connecting power cables in areas with absolute humidity. Waterproof Cable Connector: Street light plugs are perfect for extending all types of cables. You should use the right tools to protect these cable connectors from moisture or bad weather. The cable connector is super manufactured, so you can use it to connect ground cables, traditional installation cables, and ordinary line cables or in combination. Quick and Easy Assembly - Fully waterproof and very easy to connect with the included clips. Defective connecting cables can be repaired quickly and easily with these connecting fittings. Perfect for visually hiding cable extensions. Underground connection sleeves are suitable for connecting garden and outdoor advertising signs, lamps