Simple and efective unit with narrow band UVB Lamp in the treatment of Vitiligo, Psoriasis, Leucoderma, Eczema and specially on the scalp and localized part of the body. The Light weight unit ergonomically developed and easy to handle. The unit can also be usedwithout the comb or partial irradiation of small areas. Other special feature: The Device NBUVB contains all the parameters to successfully treat for Psoriasis, Vitiligo (Commonly called Safed Daag / Fulveri / White Patches), Leucoderma, Eczema and other skin diseases. NBUVB light 311nm ; Suitable Correct Rated Inbuilt UV Ballast / Adaptor ; Detachable Comb Attachment etc The device works in direct power source of 230V ac input.311 nm uvb phototherapy lamp can be used to treat all parts of the body, including the scalp with the special comb attachment which comes with the product. Treatment can be as little as 4 minutes 3-4 times a week. Simply place it against the affected area to treat,and remember to wear the Google.Positive results have been seen in as little as one week,it depends on your severity.The bulbs are philips 311nm narrowband lam. Indications psoriasis, vitiligo, mycosis fungoides, atopic dermatitis, eczema, acne, palmoplantar pustulosis, pityriasis rosea, lichen planus, urticaria pigmentosa, hair red pityriasis, alopecia areata, and so on. 311Nm uvb phototherapy lamp can be used to treat all parts of the body, including the scalp with the special comb attachment which comes with the product