Not sure if it's still interesting, but I have purchased from the same seller the 22000uF/50V about 10 pcs.
Although they are specified to work at 50V, they started to excessively heat at 35V. I suppose they are fakes, and probably the seller is unaware about this, but the size is too good to be true.(30mm diameter and 45mm height).
I suggest to test the working voltage using a variable supply before using them to avoid transforming your working board in a total mess :(