Features: 1.Physiotherapy bulb is made of high quality explosion proof material which is not only Short-wave infrared radiation but also durable 2.Promote blood circulation Most of the energy of near infrared rays is absorbed by the skin and converted into heat energy and penetrate deep skin directly cause muscle and other thermal effects. Then accelerate blood circulation increase metabolism relieve pain increase muscle relaxation and produce massage effect. 3.This infrared bulb can improve blood circulation. And the infrared heat effect of the infrared lamp has the effect of relieving pain. 4.Relieve pain in various parts of the body You only need to illuminate your body for 5-10 minutes every session to relieve your pain 5.Long service life: used in industrial civil heating. 6.Soft light waves do not harmful to your eyes. 7.High efficiency: Short-wave infrared radiation deep heating fast heating. Specification: 100% brand new and super high quality. Item Name:Infrared physiotherapy bulb Material:Metal Color:As the picture show Size:As the picture show(1inch = 2.54cm) Package includes: 1Pcs 100/150W Infrared physiotherapy bulb Note: 1.Due to the different monitor and light effect the actual color of the item might be slightly different from the color which is showed on the pictures. 2.Please forgive 1 cm/0.39 -3 cm/1.18 measuring deviation due to manual measurement. On Aug 7 2023 at 07:29:06 PDT seller added the following information: