Brinkman's equation discussed involves tunneling conductance, specifically referencing equations from a paper by Brinkman, Dynes, and Rowell. The parameters in the equations include G(V), G(0), A, delta phi, and phi bar, with A representing a constant related to the barrier properties. The units for these parameters are not explicitly stated in the discussion, but they relate to conductance and energy levels. The conversation highlights the need for clarity on the units for accurate application in tunneling scenarios. Understanding these units is crucial for proper interpretation of the tunneling conductance equations.