if like me you have health problems, muscle and joint problems, I can recommend this to relieve you by infrared. Coupled with a small lamp Philips, inexpensive, designed to receive this type of bulb, this product enables a great relief of tension and pain every day, avoiding to go without stopping at the physios who use physiotherapy. Moreover, a little extra, allows skin cleansing, especially for the face, super efficient by activating the microcirculation. Ditto if you have problems in the legs. In conclusion, I have no connection with "Philips" but can not recommend that this product gives me satisfaction :)