comments:
Hm, not the best joints... Some of them actually look like there's too much solder (could be fixed, but as people said, lots of cold joints)... Something to note is that there aren't shorts now, but there's plenty of cases where it could happen, like if the strip adhesive fails and bends, causing the large solder blobs to short. Or in other cases, the wires shift around and the melted insulation on the wires can cause a short. With short routes of cables, it'll be difficult to prevent the insulation from melting... As an aside, there are connectors that allow you to splice RGB strips with wires using something like this (hopefully links allowed? if not, search for LED light strip connectors): https://www.amazon.com/Connectors-Connector-Extension-Terminal-Lighting/dp/B09PR418WZ If you just wanted nicer wiring, you could do that, but in the spirit of soldering, try using stranded wires instead of solid core wires as someone said. You can try to minimize melting of the insulation by tinning the LED strip contacts and the wire first, then soldering the wire onto the LED strip. Doing that will help a little in soldering the wires faster hopefully...