Radiant power (total flux) is the total emitted radiation of light sources such as spot lamps. To measure radiant power the emitted light from the source must be detected independent of emitted direction. For lamps that emit light in all directions a light integrator such as an integrating sphere or a goniometric scanner is required.
Gigahertz-Optik’s calibration laboratory offers calibration of beam emitter light sources over a restricted power range. Consult the factory to discuss your requirements.