Not sure I quit understand your question, but this connector is used to add more lights to the orginal length you have. If you are using lights above your cabinets then I would use just a wire connector and the smaller wire to jump from one to the other. It is alot less
visible than the connectors
Yes, but be cognizant of the proper gauge wire for the desired length of additional wire to be soldered to the cut ends particularly if you are talking about adding feet not inches to this connector. This company has a good support line that may be helpful with further technical info.
I used these on the waterproof type LED in 300 an 600 count strips an used a razorblade at the closest LED to remove the clear silicone to the cut point. you have top open the 2 plastic catches to get the strip to make contact with the terminals and close the halves to ensure contact. If going to be used outside, recover the connector with silicone again to prevent water from getting to the spices.
Yes, you get 4 connector jigs. However, they connectors did not fit the LED ribbon. The last LED was too close to the end for it to fit into the snap enclosure. I ended up junking mine and soldering in a simple wire connection between ribbons. ALSO BSEE.