Lighting. Friday , September 21st , 2018 - 19:43:49 PM
Before any kind of home renovation work you need to plan the entire lighting system of the house, plugs, lamps, wiring, etc., in order to avoid having to chop wall for wiring later. You should also consider what electrical accessories you will need and what kind of activity you will do in each room of the house. There are three different types of lighting: general lighting, task lighting, and accent lighting.
When performing lighting design for a room, keep the following facts in mind: Lighting always requires shadow in order to create contrast and visual appeal. Bright overhead lights, while capable of illuminating every aspect of a room, often turn it into a "monotone" and boring space. A given living space typically requires from 5 to 10 light sources in order to be adequately lit. The exact number of light sources will also depend on the color scheme of the room; a darkly painted room will require more lighting than a lightly painted one. Similarly, a heavily decorated room will require more light sources in order to highlight the many interesting features of that space. Matching light collections are ideal for achieving unity in a single room, as well as saving on purchasing time. Pictures and paintings are important features of a room and should be illuminated. Highlighting such items also helps to define the perimeter of a room. To make a room more interesting, try varying the heights of light sources, as well as their intensities (e.g., by installing dimmer switches). Such variations will help create different areas of shade intensity and size.
Light quality and colour can dramatically change the appearance of a room so it is important to get this right. You wouldn't, for example, want bright white lighting in a bedroom, instead a soft warm white ambiance would be more suitable. When choosing a light bulb you first need to decide which colour temperature you require. Colour temperature is a measure of how warm or cool a colour appears. It is measured in Kelvin; the standard measurement for lighting output in addition to lumen output. Colour temperature is derived from the colour of light produced when carbon is heated. The Kelvin Scale ranges from extra warm white at 2,700k giving a warm yellow glow, to white at 3,500k, cool white at 4,000k and daylight colour at 6,500k which produces a white blue colour. LED, CFL and halogen energy savers are all available in a range of colour. Complaints have been made in the past about LED giving off a cool blue light but with the improvement in technology, as long as you buy a good quality LED this should not be a problem. It is then important to look at the colour rendering index (CRI) which shows to what extent the light will make an object appear its true colour. An incandescent bulb is rated at 100% because its light contains a full spectrum of colour. CFLs do not contain the full colour spectrum but a good quality triphosphor fluorescent rated between 80-90% will be sufficient for everyday use. Higher rated CFLs can be obtained but are usually only used by designers or artists and are less efficient. It is advisable not to buy a light bulb which scores below 80% on the CRI scale. Energy saving light bulbs have received a bad press at times because of the light they produce, but this has tended to be because many poor grade CFLs either brought from supermarkets or given out for free by energy companies have come onto the market.
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