308nm excimer light is new device for treatment of vitiligo . 308nm excimer lamp has lower intensity then excimer laser . both of them has the same effect for vitiligo , psoriasis. Excimer laser takes about several millisecond for one treatment , excimer lamp takes about 2-10 seconds . so excimer lamp is controllable and low risk of blister. non-speclister can operate it . excimer light also has the low cost , the price is 1/20 of excimer laser.
