The geographical location of a building, its compass orientation, window sizes and shading by other buildings are important criteria for successful planning of daylight-dependent energy-efficient lighting systems. Lighting designers should therefore be integrated in the building project at an early stage.
Ceilings and walls with surfaces that are as bright as possible can be used as large reflectors to access the photoreceptors in the human eye to maximum. The luminances of the surfaces in a room must not exceed the permitted values however, otherwise there may be undesirable direct and reflex glare. A wide variety of different luminaires are available on the market that either provide indirect light off room surfaces or, as pendant versions, have large reflecting surfaces themselves.
Perfect interplay between EASY Color Control and QTi DALI ECGs
An appropriate control system such as EASY Color Control in conjunction with QTi DALI ECGs, can dynamically change the color temperature of the light to simulate the changes in natural daylight. This requires the luminaire to be equipped with at least two different light colors, preferably LUMILUX SKYWHITE 880 and Warm White 830, and a cover of specially selected dispersion material.
