Lambo is all version 1 Lavatube electronics in a different body.
Version 1.5 has upped the current limit to 3.2A and added the resistance check, etc.
Version 2, or 1.5T, claims 4A, but there is some controversy about whether this claim is true or not.
The chrome and stainless versions of the Lavatube V1 have rectified the issues with the aluminum body, regarding plastic endcaps and paint wear.