250 - 4 500 nm | OL FEL
Gooch & Housego
The OL FEL standards are NIST-traceable, 1000-W FEL-type lamps. They have tungsten coiled-coil filaments and a bi-post base, as recommended by NIST. They can be obtained with calibrations over part or all of the 250 to 4500 nm wavelength range. Various optional accessories are available.