The RS-10D is a precision source of radiant flux, used primarily to calibrate light-measuring instrumentation and as stimuli to measure detection devices.
The RS-15 Flux is a precision source of total radiant flux, used primarily to calibrate integrating spheres, spectroradiometers, photometers, and radiometers and as stimuli to measure detection devices. Lamps are available from 5W to 200W.