Improved design of a catalytic method and reactor for the production of methanol at equilibrium conditions whereby methanol as it is formed is separated from the gaseous phase into the liquid phase within the reactor without reducing the catalytic activity of the methanol catalyst. The AC LED is thermally connected with the heat dissipating unit, and the overload protecting unit is connected in series between the AC LED and a power source. The electrical machine is provided on the pump wheel and the operational link being provided on the turbine wheel of the torque converter. In some embodiments, the invention provides compositions and methods utilizing a combination of a dopaminergic agent and a nicotinic receptor modulator that reduces or eliminates a side effect associated with dopaminergic agent treatment. This hair dye composition has markedly high hair dyeing power, has less color fade over time and undergoes a small change in the color tone of the dye even after storage.