The Window Maker units are currently produced with 110/120V voltage for use in US & Canada (cat# 07200-S) and the replacement modules (cat# 07301-S, 07201-S, 07204-S, 07207-S) differ only in size of the burn window and can be used with new and older Window Makers even if you have a discontinued unit with different voltages.
Click HERE for MicroSolv Window Maker ordering information and pictures.