... 3000-1000000nm 4.Appearance:Single pipe 5.ISO9001 passed The principle of the infrared lampsA long-wave infrared (far-infrared) which ... seconds warming cooling time, the heating process control more flexible. Coated gold reflective layer of a single tube, the twin tube, efficient ... and durable, can be achieved more than 96% of the radiation efficiency, long service life, usually more than 10, ...