ROCK SOLID CONNECTION - Brightfour Wire Connectors solve the Problem that many wire connectors become loose caused by the varying temperatures etc. After a few tests, you will see they still hold tight, and keep good contact. They stand out with reliable secure connection than other type connectors..NO MORE SPLICING PESTY LITTLE WIRES - Wire taps have always been annoying. Our low voltage wire connectors save you from Peeling or Stripping, Cutting, Soldering, even Welding wires like the “old school” way. They take care of all the connections with ease and keep everything clean and easy to manage, provide a much simpler and quicker installation process. Cut the installation time by half..USE THE CORRECT WIRE - Fits well for 20, 22 and 24 AWG stranded and solid core electrical wires. As for 18 gauge wire, not all 18 AWG wires are with the exactly same diameter in the market. You may be able to use these connectors with 18 AWG wire..SMALL ENOUGH TO BE TUCKED - With a compact size, and transparent surface, it is practically invisible and compact to meet your individual needs. Especially nice for wiring led lights..WIDE APPLICATIONS - Perfect for all vehicle/audio/video/LED light Strips installation and other electrical wiring projects, like car audio, LED turn signal lights, car's cigarette lighter wiring, etc. It is widely used for various low voltage and high voltage electrical hookups.