COB LED Light Strip Connectors 8mm 2 Pin Extension Kit for COB High Density LED Strip Lights 2Pin, Transparent Middle Gapless Splicer, PCB Board to Board Jumper with 20AWG Extension Wires

They are like scotch locks You slide it onto your LED strip and you pinch it with a pair of pliers which puts prongs into the copper strips of the LED strip. I do have one that was flickering due to a bad connection and I reset it and crimped it again and it seems to be good used to link multiple sections of LED strips. Very happy

Super easy to use this jumper kit and they work very well. I had to splice using 2 of these connectors. I half expected the contact not to be reliable but so far so good on both connections.

Used this product to allow for my COB LED light strip to turn corners and lie flat inside a shadow box for a faux window in a windowless bedroom.

Oh, these were great at first. But after a few weeks, they started flickering. The flickering got worse and worse, until now they flicker terribly EVERY TIME I use them. Entire sections (everything down the line from the problematic connection) will flicker, or be very dim (sometimes even be out completely).I will have to redo the ENIRE INSTALLATION, which will take HOURS! And there is a good chance the prongs on these clips damaged the light strips to the point they are ruined and will need to be replaced. I am so angry, I would give these negative stars if I could.I installed them in August 2021. I started noticing the flickering after about a month. By the end of the year, they were having serious problems with flickering and dimness. By March 2022, only 6 months after installation, they are flickering so badly every time I turn them on that the entire installation is unusable.They were super easy to use, and they saved me time soldering. But now the non-stop flickering is completely distracting, and looks terrible. It's almost like strobe lights. I don't think there is any chance I made a mistake installing them, especially since they worked really well for several weeks. They are so easy to use, they really are fool-proof.I can sometimes get the flickering to temporarily stop by applying pressure to the prongs, adjusting the angle of the prongs or the connector, or trying to hold the wires in a particular position with cable clips. Sometimes I get frustrated and give the connection a good smack. I tried re-clamping a few that are easiest to reach. Sometimes it doesn't help at all, sometimes it helps for a little while. If it does help, it's only temporary, and it goes right back to flickering and dimness (usually by the next time I turn the lights on).I used regular non-COP LED light strips for a different installation, and used the standard 2-pin LED light strip clips on those, and they have lasted a few years now. Those NEVER flicker. These are a completely different design. These do NOT last.I now have to take everything down, take the lights out of the tracks (at least enough to reach the connectors), remove these cheap connectors, solder all the connections properly, put the lights back in the tracks, and remount it all. And if the prongs on these connectors damaged the light strips too badly when they pierced them, then I will have to replace the lights.If you want your installation to last more than a few weeks, save yourself the time and frustration by soldering it properly the first time.

Despite Amazon recommending these for the COB light I bought, they were designed for only a two wire system although they were sold with a four pin COB wire.