The real thing for size is the transformer and other magnetics, which decrease with frequency, hence why this uses VHF frequencies. Output filters can also be made smaller at higher frequencies, and Ken Shirriff's iPhone charger teardown above shows a small ferrite ring _inside_ the charger case for high frequencies.
UL Approval is probably under on the "Production Timeline" (2/3rds down) under "Submit for initial regulatory certification (4 months)", which is set to begin now (Apr-May).
As for the wire thickness, it doesn't seem that much thinner than my Macbook Charger, which is also 65W. The production timeline on the kickstarter leaves them time to change to a thicker one.
The big question of course, is the feasibility of the VHF AC-DC conversion. FINsix have a paper (http://finsix.com/assets/files/FINsix_Tech.pdf) but its not very long or detailed, and I don't know enough to criticise it if it was.
The real thing for size is the transformer and other magnetics, which decrease with frequency, hence why this uses VHF frequencies. Output filters can also be made smaller at higher frequencies, and Ken Shirriff's iPhone charger teardown above shows a small ferrite ring _inside_ the charger case for high frequencies.
UL Approval is probably under on the "Production Timeline" (2/3rds down) under "Submit for initial regulatory certification (4 months)", which is set to begin now (Apr-May).
As for the wire thickness, it doesn't seem that much thinner than my Macbook Charger, which is also 65W. The production timeline on the kickstarter leaves them time to change to a thicker one.
The big question of course, is the feasibility of the VHF AC-DC conversion. FINsix have a paper (http://finsix.com/assets/files/FINsix_Tech.pdf) but its not very long or detailed, and I don't know enough to criticise it if it was.