Color point and/or lumen output correction device, lighting system with color point and/or lumen output correction, lighting device, and methods of lighting

A portable device comprising a light detector, a correction calculator and a correction output element. In some aspects, (1) correction (and/or adjustment) is of color point, lumen output, or both, (2) the portable device is a smart phone or a computing device, and/or (3) a wireless correction signal is transmitted and received. Lighting system, comprising a light source, and a portable device that comprises a light detector, a correction calculator, and a correction output element. Lighting device comprising a light source and a receiver. A method comprising detecting light with a light detector of a portable device, generating a correction signal, and outputting the correction signal with a correction output element of the portable device. Method comprising placing a portable device in a calibration location, illuminating a lighting device, and detecting light emitted from the lighting device with a light detector of the portable device that has a correction calculator.