20PACK Extension Connectors for U102 U103 U-Shape Aluminum LED Channel, The Aluminum Channels Can Be Connected Seamless for Longer Lighting Project, LCB3, Series LA1

I've bought a bunch of these for 3 different lighting projects. They hold the channels in place better than the little connectors that come with the channels. I really like Muzata and their LED lighting products. Every project has been gorgeous in the end, and people compliment me for them. In one case, I used black anodized channels. I spray painted these extension connectors black to match, and that worked very well.

Typical cheap garbage. Doesn't attach to the channels, doesn't hold them together, doesn't really do anything. Not to mention, why aren't these included with the the channel strips on the first place? Why would anybody want just this product?