Lighting. Friday , September 14th , 2018 - 19:30:57 PM
Choose high voltage for wall lights, deck lights and lights around a swimming pool. You might also want to choose high voltage for a powerful garden up-light to illuminate a large tree or building. With high voltage lights you will need to install an armoured electrical cable that can't be damaged by gardening tools and equipment. You will also need to use appropriately insulated electrical connectors.
Sunlight will always be more effective then electric. But that doesn't mean that you shouldn't use electric light. It can be very helpful when trying to create different light effects inside your house. How to maximize electric light? Think of something more interesting then just one lamp in the center of your ceiling. What about using spotlights to mark out some small special things? Try to create several levels of lighting: one of them can be on the ceiling, then table lights, different kinds of uplighters. Place your light sources in various places of the room - let them emphasize the specifics of your living space. Don't forget to differentiate electric lighting controls - it's not always good to have too much of light.
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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