The medisun HF-54 is a UV lamp module which has been specially developed for the treatment of chronic hand or foot diseases. Depending on the UV spectrum used, medisun HF-54 is particularly suitable for the treatment of psoriasis, neurodermitis, vitiligo and some other indications. It is also suitable for UVB narrow band therapy with 311nm-Lampen and for PUVA therapy with UVA-bulbs. The integrated electronic timer ensures that the unit is automatically switched off at the end of the irradiation after the previously set exposure time ends.