Lighting. Tuesday , September 25th , 2018 - 11:35:23 AM
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.
The seemingly straightforward task of choosing a light bulb has however become a bit of a mine field in recent years. The plethora of light bulbs and lighting technology on the market and the rapid pace of development in the industry is both cause for consumer celebration and caution. Greater range of choice gives consumers unprecedented freedom but also means it is more important than ever to choose the right light bulb for the right application. Comparing lumens per watt values is an easy way to identify the most "light" efficient lamp in terms of brightness. But to work out which lamp type is best for a specific application in terms of energy efficiency the following things need to be considered: wattage, lamp life, daily use, lamp cost and lighting output required. The best way to do this is with an energy saving calculator. By entering specific values you can compare your current light bulbs with those you are considering replacing them with and make an informed lighting decision based on an energy saving forecast.
With the enhancement in technology, LEDs are now available in waterproof form for underwater application. LEDs are now capable to create a dramatic lighting effect in your aquarium and luxurious swimming pool area along with cutting your energy cost. Most of the pool owners are now enlightening their pool water and landscape with LED lights. One of the important reasons is LED brightness and shock resistant nature. Their multi-color brightness will illuminate pool and spa features effectively and swimmers are fearless with current while using it. Availability of LED in various colors helps to create desire effect and enhance the attraction to the pool. Water fountains, aquarium, artificial waterfalls and several other water features are glows up by LED in much brighter way and contribute to improve overall pool's atmosphere.
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