Bests & Worsts Reviews from Amazon

I bought several bases for different areas of my home via Amazon, but couldn't find the extension light strips available anywhere. I was able to buy only 5 via Walmart and - they're a different version and has a completely different connector! I was able to figure out that there are different versions only after extensive search on forums online, not, in my opinion, evident upon purchase. I now have 3 bases with no availability to purchase extension light strip, and 5 extensions I can not connect to any base light strips.