Review on 🔌 Nexillumi L Shape 4-pin Connectors: Angle Adjustable LED Strip Connectors for 5050 RGB Lights (10 Pcs) by Charles Galan

I bought these to create a zigzag with my daughter's light bars and was happy that adjustable angles were available. While it looks like you need to be able to twist them the other way for it to work, since the black wire is on the outside of the corner on all of them, you can't twist them up and then down etc. This only works if you always turn in the same direction. Unless you're zigzagging like me, you might not need to go two-way, so you might just be able to change direction for the entire lane. But that aside, the wires turned out to be a lot less flexible than I thought, so I didn't really like them for their intended purpose either, unless you're going to keep them square, and fixed right angles are sold. I ended up buying separate connectors (you need 2 for each round) with a piece of wire to cut myself. At first I thought it was overkill, but they offer a lot more flexibility. A good thing is that they have pairs of metal joints inside, between which you insert a strip of light. Definitely holds up better than those with connectors on one side of the strip. However, it is difficult to insert a thin strip of light into them.