Features Good airtightness and high waterproof level, can be soaked in water without causing damage to internal components. The junction box is made of imported PC material, which can play a role in fire and flame retardant. The product adopts silicone sealing ring, which can be used under relatively harsh conditions. With great workmanship, perfect replacement for the old one and has a long service life. High safety factor, with strict quality control and quality assurance, can be used with peace of mind. Specification: Item Type: Waterproof Junction BoxWaterproof Rating: IP68 Installable Wire Diameter:  Large: Approx. 12 ~ 15mm / 0.5 ~ 0.6in Middle: Approx. 9 ~ 12mm / 0.4 ~ 0.5in Small: Approx. 4 ~ 8mm / 0.2 ~ 0.3in Can be Wired Number: 3 Package List:1 x Waterproof Junction Box 6 x Silicone Coil 1 x Silicone Gasket 7 x Screw 2 x Terminal  Package List 1 x Waterproof Junction Box 6 x Silicone Coil 1 x Silicone Gasket 7 x Screw 2 x Terminal