• produce by using high purity glass tube，single tube and twin tube can produse.
• IR wavelength between 1-2μ，NIR wavelength between
• using tungsten wire as filament 
• response time around 1~2 second 
• color temperature 2400-2500K  
• max. overall length up to 3M
• gold or ceramic coating at rear side as reflectors 
• average working life 5000hours
• evey Voltage 、Wallt and length can baed on customer's bunisess needs 
• Vertical and horizontal emitters are available 

Type of Twin tube short wave : we can povide dia.23x11mm and 33x15mm