Preferred MaterialOur outdoor electrical box is made of high quality sturdy ABS, the 3 way electrical box is safe to use. It can play a good role in moisture and dust resistance, and is very strong and durable. Manufacture waterproof junction box safe to use in the sun, rainy or snowy days. Easy to installThis waterproof junction box has a size of 110*90*46mm, the external electrical boxes have large internal space for cable diameter between 5.5-10.5mm. (Ideal for 2.5mm T&E flat cable), very easy to install. Exquisite Design Outdoor waterproof junction box has rubber seal with 3 mating connectors and 1 nail in each corner, easy for external connection and solderless, no need to cut the cable. With the correct size rubber sealing ring, the outdoor waterproof junction box can be completely sealed and protected from water. Main FunctionThis outdoor waterproof junction box is mainly used for connect outdoor lighting, 3-way design makes the waterproof electrical box more convenient. ApplicationThe scope of our outdoor waterproof electrical box has a wide range of applications, you can use the cover outdoor waterproof socket, such as LED billboards, tunnel lights, streetscape lights, outdoor displays, patio lights and more. Also widely used in underwater and underground engineering, various industrial areas.