A quick way to differentiate between Version 1 (1st Generation) and Version 2 (2nd Generation) biOrb Aquariums:
Version 1 will have a 2-prong black cord that attaches to the transformer. Version 2 will have a white DC plug.
A quick way to differentiate between Version 1 (1st Generation) and Version 2 (2nd Generation) biOrb Air Terrariums:
Version 1: The bottom of the mister will be completely clear.
Version 2: The bottom of the mister will be black and green.
More biOrb Information Can Be Found Here: