Spectroradiometer

Our spectroradiometers measure radiation with 1/2-nanometer bandwidth resolution.

IRRADIANCE

Dr. A. J. Both of Rutgers University used model PS-100 to examine the output of several LED lamps and traditional lamps and evaluated their usefulness for greenhouse and growth chamber applications.

In the graph at right, these lamps are compared to the solar spectrum and the Relative Quantum Efficiency (RQE). Here, he compared a warm white lamp and warm white LED, click for larger views (JPG).

In the table below, Spectral Efficiency is a way of comparing the lamp’s output to the RQE.

COMMON       SPECTRAL         LED               SPECTRAL

LAMPS            EFFICIENCY*      LAMPS         EFFICIENCY

HPS                     0.89                 Super Blue        0.72

MH                       0.78                 Super Red         0.98

INC                       0.49                 Cool White        0.80

FCW /                   0.86 /               Warm White    0.82

FWW                    0.87

Sun                       0.64                  Plant Bar          0.92

* Bugbee, 1994: PPF Correction Factor =

[(PF)i * (RQE)i]360-760 / (PAR)400-700

$3,995

Model PS-100:

Products >> Spectroradiometers >> Applications & Journals >> Irradiance