... 3,high radiation 4,safe Senttech twin tube halogen electric short wave infrared quartz heaters with italian technology Feature: 1. ... Senttech Infrared Technology Co., Ltd cover the whole IR range. infrared short wave ,infrared fast response medium wave,infrared medium wave ... /415V,max to 550VWave length 1-1.4μm , short-waveMax length of tube6000mmGuarantee hour5000 hoursExport Markets: North America, ...