A method and system for imaging a workstation and then associating that image with a specific device are disclosed. It has now been found that this adverse effect can be counteracted or lessened by the presence in the furnish of a polyvinylamine. In particular, this composite material is a copper composite material, which comprises 10 to 55 vol. The two-stroke engine has an inlet into the crankcase and an outlet from the combustion chamber. Each of the various lamp-lens modules can connect to one of the various power modules to provide a variety of lamp assemblies providing various illumination patterns operable from a number of supply voltages.