A building’s lighting performance includes both electrical and solar light sources within a space and affects everything from comfort and safety, to energy costs and user productivity. Lighting is typically expected to be within a certain range of lumens (intensity) and quality for a given space and task. Ideal lighting design typically involves balancing light sources, costs, quality, and heat gains while avoiding issues of glare and over- or under-lit areas. Tools in this category include sensors and meters for short and long-term measurement of area and surface luminance, illuminance, reflectivity, and radiative solar properties. This data can be used along-side imaging tools to determine glare issues and energy logging tools to analyze and compare lighting electrical performance within a single space or building.

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