Quartz Tungsten Halogen (QTH) Sources Guide

Quartz Tungsten Halogen (QTH) Lamps have high visible and near infrared output, with little ultraviolet making them great for use in Incandescent Light Sources. The stability, filament structure and high color temperature make our lamps the best for many measurement and illumination applications. We offer 10 to 1000 W QTH systems, and 0.8 to 140 W IR systems.

Calibrated Sources

Our calibrated QTH irradiance sources are very reliable sources of known spectral irradiance, significantly less expensive than NIST standards. These sources can be used as primary sources for your own calibration transfer. We offer 45, 200 and 1000 W lamps calibrated from 250 to 2400 nm.

Selecting an Incandescent Light Source

Click Incandescent Light Sources to shop or browse all of our standard models, or select a product series below for more information.

Series		Operates These Lamps	Special Features	Interchangeable Lamps	Works with Light Intensity Controller	PC Controlled
	Apex Quartz Tungsten Halogen Sources	50 - 100 W QTH and 9 - 50 W IR	Fully integrated systems; lamp, electronics and optics all in one enclosure
	10 - 100 W Series Q Quartz Tungsten Halogen Sources	10 - 100 W QTH and 0.8 - 140 W IR	Multiple output port system; most versatile low wattage source	X
	Oriel PhotoMax Lamp Housing	10 - 100 W QTH and 0.8 - 22 W IR	Produces focused, high Intensity output	X	X	X
	Simplicity Series Quartz Tungsten Halogen Sources	50 - 1000 W QTH	Economical version of Research Systems - output stability of Research Source without all of the user features
	10 - 1000 W Research Quartz Tungsten Halogen Lamp Housings	10 - 1000 W QTH	Fully featured, highly versatile systems designed for Researchers	X	X	X

Newport Family of Brands