
I am very happy with it. For external use I had to connect a 240V cable. These junction boxes are undoubtedly completely weatherproof. I've worked with IP66 and similar cases in the past and I'm sure they do what they promise. Each box is well made and has two 3-way block connectors and screw fittings. Two external protrusions are used to fix the item. Four tiny screws hold the cover in place. Before attaching the screws I used blue tape to secure them in place. They can be easily lost if they fall out.