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  • BlueLeavesDesign

Light Up Your Home - 1

The Basics :

Light is measured in lux or foot-candles in the US.

It measures the amount of amount of light that arrives at a surface, not emitted by an object.

Some Common Lux Values Required:

  • Living Area / Bedrooms / Bathrooms : 200 Lux

  • Reading / Work Surface : 500-750 Lux

  • Sunny Day : 10000 Lux

Factors Affecting Lighting Levels:

  • Lux required is dependent on activity.

  • Its also affected by interior surfaces. Dark Matte Textured surfaces are least reflective. Light, glossy, smooth are the most.

  • And also age of the person using the space. As age increase, lux required increases.

  • Direction of lights affects its quantity & quality.

  • Mood can affect required lighting levels. And vice versa.

Other Definitions:

  • Standard domestic light bulb is called the tungsten bulb. It uses 5% of electricity to light up. The remaining is dissipated as heat. Thats why they get so hot.

  • CFLs -- or compact fluorescents -- consume less power.

  • Low Level light sources are comfortable for bedrooms.

  • For reading, information light -- i.e. light concentrated in a small area -- can be obtained through desk lamps or reading lights above the headboard.

  • Low level information light : near address boards, locks, front doors.

  • Other information lights include cupboard lights, oven lights etc.

  • Diffused Light or background light, is hidden, indirect and soft. Usually obtained by bouncing off other surfaces.

  • Directional light is focus light.

  • Strip lights if concealed can make heavy items 'float'. Usually used in halls -- since halls require warm welcoming light (not too bright)

  • Candlelight.

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