Commercial photometry is important for lighting installers and their clients in choosing the best locations to install fixtures as well as ensuring maximum efficiency of lighting systems. The science of measuring light, in terms of how the human eye perceives its brightness, is called photometry. …
Illuminance Explained
Illuminance is the amount of light striking a surface – also known as incident light, where the “incident” is the beam of light actually landing on the surface. Lumens are a measure of the quantity of light, referred to as luminous flux or just flux, emitted by a light source. When considering lighting applications, illuminance is used to measure …
LUMENS: The new way to shop for light
New federal lighting regs to help consumers make ‘green’ lighting choices Starting Jan. 1, 2012, new federal regulations will require the most common light bulbs to be more energy efficient. Specifically, bulbs must produce the same amount of lumens (light output) for less wattage (energy consumption). All packages of light bulbs sold in stores after the New Year will carry … Read More