No risk $60 Lamp that cures every skin disease. With new UVB LED lamps. With LED technology it is possible to achieve the exact wavelength that cures Psoriasis. This is not achieved with fluorescent lamps. With the new LED lamps the dose is 1/100, there is no redness in the skin, there is no need to increase the dose gradually and to wait 2 months to see the skin cures. The skin cures in one week. You can get a refund if the lamp will not cure you Psoriasis after using the lamp 2 months.