[tacticalogic]

It isn't reasonably possible to make the distinction between the two, as a general rule. A package of illicit drugs doesn't include documentation certifying its origins and various destinations. In practice, enforcement efforts aren't directed toward personal users with a closet growlight.

Maybe, but the law makes no distinction between the "closet growlight" and a warehouse operation. Both are considered "manufacturing" and viewed as violations of federal law under the Commerce Clause, and requires the assumption of involvement in "interstate commerce" for both, even though one of them plainly is not.

[Roscoe]

Maybe, but the law makes no distinction between the "closet growlight" and a warehouse operation.

Wrong. Penalties frequently increase with quantities.