Generally, the answer is Yes we can. This is if we assume that the Lamp Electrical Data is the same. Need to be sure that the Ballast employed to run mercury version is OK to run an Additive One. In some units it is interchangeable while in some there might be issues with ignition and the lamp proper operation. In other words, you may be able to run a mercury lamp with an iron or gallium ballast, but you may not be able to run an iron or gallium lamp on with mercury ballast. You will not get the results you may need to cure your substrate properly.**Your ink/coatings supplier will dictate what type of doping to use based on the wavelength you are trying to cure on your substrate:Mercury - 365nmIron - 390nmGallium - 410nmLead - 430nm