I originally purchased these in 2018 to put into a project that would be outside in the wet North East Ohio weather, Previous lights used in my display always causing shorts causing me to remove specific sections of my display to get it back up and running. the Water Tight connections between the strings are amazing and not needing to have to tape every connection is great. The connecting of 90 strands getting up to 2250 lights on a single run is great. Although these are a little more expensive then your normal strand of 50 with conventional plugs I would recommend these to anyone looking to create professional looking displays that you expect to last a long time.