I never heard of either of those. It does seem like possibly an intentional way to confuse people with Vapor4Life aka V4L which IS a very popular US ecig vendor (a dedicated KR808D-1 shop)
KR808D-1 is a 9.2mm diameter 2-piece model with male threaded
batteries and female threaded cartomizers
Vapourlites looks like a female threaded battery with male cartomizers so it is probably either RN4081 (typical for rebranded female models, not one of the most popular models but is fine - just little available for it), or one of 306, 510 or L88B (3 models which have the same threads but the L88B is definitely reverse electrical polarity). Or it could be the mystery female model that fits nothing else.
Whichever it is, it looks like Vapourlites doesn't have a bad price markup. It will be fine to start on though most people use and recommend manual batteries, especially if you plain to refill cartomizers (harder damage or kill with juices leaks, easier to get a good hit, won't turn on accidentally from wind or vibration).