Anyone bought chinese unbranded 10440 S/S pointers?

[spark001uk]

As title suggests, has anyone got any experience with the generic unbranded "Sanwu-esque" stainless pocket pointers out of China?
They look much the same, but are fixed focus. Very similar looking build, and take the same cell (10440).
eg.: https://www.ebay.co.uk/itm/396058908511
Around £40 for the "488T-50" cyan, or £30ish for the 505 & 450nm
Curious to know if they're any good? Otherwise I'm happy to take a chance on one if nobody else has, and post my findings!

 

[ZRaffleticket]

I've bought one of the 488s, build quality is fine, it doesn't feel heavy like the sanwu ones do, but I don't have any complaints with it. Mine measured about 484nm so it's a bit on the blue side as opposed to the green side of the 488 lottery, though your results may vary