NGP is now Moon and the first PV from them under the new name is the G1. It is a Genesis style with a 25 amp limit on the switch. Overkill to say the least.
Dimension and weight:
18350: 90mm length, 41 grams (without battery)
18650: 127mm length, 46grams (without battery)
It is a "get on the list" PV but you do not have to pre-pay, when yours is ready they let you know and then you pay and they ship.
I really like the looks, the driptip is part of the cap, different size caps will be offered in the near future. Mine is ordered already.