<ul><li>This red light bulb has 660nm of deep red light and 850nm of near infrared, the optimal wavelength of light.</li><li>Designed to deliver infrared heat to the body. Infrared heat improves blood flow and circulation to targeted areas, promoting recovery of muscles and damaged tissues.</li><li>Used for tens of minutes at a time, infrared heat lamps provide a comfortable heat source. Just enjoy the comfort.</li><li>Fits standard E26 and E27 bulb bases, 100~240VAC</li><li>The bulb of this infrared heat lamp is made of high quality glass and the infrared heat lamp provides a comfortable source of light and heat.</li></ul><br><br>Rhmip Near Infrared Red Heat Lamp Blub,Suitable for Infrared Devices,Relieve Physical Pain