What is a JKY cartomizer and how does it differ from others?

[frazz]

I see some carto's listed as Boge JKY cartomizers... what is the JKY and how does it differ from others or just ones listed as plain Boge?Never ordered boge before and doing so with my venture into the tank thing... any help is appreciated.Frazz

 

[frazz]

No one has any info on this? Also, another question... is there an optimal voltage for the 3 ohm carto? I know voltage is also juice dependent for taste, but what are most of you using for voltage on these cartomizers?