Waterproof and Durable: IP66 advanced waterproof and dustproof material, high temperature resistance, allowing you to use it for a long time without frequent replacement. 3-Way Optional: 1-in and 2-out junction box. Suitable for various line interfaces. Small size: 4-9 mm. Medium size: 9-12 mm. Large size: 12-15 mm. PC Material: Junction box made of high-quality PC housing. Will not crack or fade in the sun. Corrosion resistance: High temperature resistance and long service life. Easy Installation: Simple operation. Convenient for outdoor lighting connections. Simple wiring. The junction box can be easily installed underground. Wide Applications: The junction box is suitable for all types of LED billboards, tunnel lighting, roadscape lighting, etc. It is also very suitable for use in places that require lighting, such as underwater and mining engineering.