Fast results Psoriasis Vitiligo Eczema Phototherapy UVB Lamp 4 X 4 inch in 20 seconds

Hold it 4 inches (10 cm) from the skin.
It will treat a skin area of 4 × 4 inches (10 × 10 cm).
The treatment time will be 20 seconds.
Use the lamp weekly.
110-240 volt 4 watt