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Lighting Research Facilities at LBNL

	Gonio-photometer We use this device to measure the intensity and direction of the light from a lamp or fixture.
	Integrating sphere This instrument allows us to get a fast and accurate measurement of the total light output of a lamp. We are not able to determine the direction of the light, only the intensity.
	Power analyzer We use our power analyzer with the lamps in the gonio-photometer to measure input power, harmonic distortion, power factor, and many other signals that tell us how well a lamp is performing.
	Spectro-radiometer This device measures not only the intensity of a light source but also the intensity of the light at each wavelength.