Waterproof and Durable: Ip66 Advanced Waterproof. Dustproof Material. High Temperature Resistance. So You Can Use It for A Long Time Without Frequent Replacement. 3-Way Optional: 1-In and H2-Out Junction Box. Suitable for Various Line Interfaces. Small Size 4-9Mm. Medium Size 9-12 Mm. Big Size 1H2-15Mm. 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: Easy Operation. Convenient for Outdoor Lighting Connections. Easy Wiring. The Junction Box Can Easily Be Installed Underground. Many Uses: The Junction Box Is Suitable for All Types of Led Billboards. Tunnel Lighting. Street Landscape Lighting, Etc. It Is Also Very Suitable for Use In Places Requiring Lighting, Such As Underwater. and Mining Technology.