Basic spec info:
80*37*22mm
3.0v - 5.5v output
2200mah battery
Standard 510 connection (not a floating pin as I understand)
Power bank function
Flashlight
There is a rumor that the 18650 can be replaced by the user but dont take my word for it.
Not the greatest of reviews..
My conclusion: I like the 30watts, thats an obvious winner over the iStick but everything about this mod says 'cheap' to me and thats scary because the iStick is cheap, that also might not be the case.
Im interested none the less but when eLeaf releases a V2 of the iStick I doubt the Beyang will stand a chance. (Plus the all mighty MVP V3 is soon to be released and then theres the IPV mini which you can look at here - http://www.ecigssa.co.za/threads/ipv-35w-mini.6625/)