Is there a compromise in intensity with the Ag/Cd/Pb/Zn or Al/Ca/Mg multi element lamps?
Ca, Cd, Mg, Pb and Zn are present in the optimum solid concentration. The respective intensities are comparable to those of the single element lamps. The relative intensities of Al and Ag are less compared with the single element versions. These elements are so intense anyway that the reduction has no real practical disadvantage.