This Manrose T12S low voltage transformer is designed to power the 12V low voltage fans which are installed in the splash area of the shower or bathroom. The T12 transformers must be mounted remotely away from the splash area. This model can be installed in the loft. The T12S is a standard version with no integral switching feature (requires remote switching). To view the full range of transformers for the low voltage fans please type 'T12' into the search box.