Bought these along with a four way amplifier unit only because it was easier than using different suppliers. It has to be understood that these are budget plugs and the build quality reflects this, I had a few defective plugs in the two packs of five I received, to their credit electrosmart replaced these instantly without quibble. Even without the replacement plugs it still worked out a lot cheaper than the local DIY superstores. If they are to be used for one shot installation, that is plug in and leave then they will be fine, if it is likely that you will be removing the aerial plug regularly then pay a bit more and buy a better quality plug.