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Please ensure that you use a PART P, NIC EIC electrical contractor to install your exterior lighting.
Care must be taken when installing exterior lighting products. All the products are sold and tested fit for purpose and the IP rating is set according to the design and purpose of the luminaire. The weakest point is generally the installation of the product and poor cable joints if not made a 100% water tight. 12v low voltage flexible rubber round double insulated cable can be used (NOT PVC CABLE) as PVC can lead to capillary action and can allow for water penetration. All joints must be made watertight using cable joint kits.
Each low voltage fitting will need to be attached to a 12v transformer. You can install up to 10 fittings on one transformer and much depends on the maximum wattage of the light bulbs used. For example 7 x 5w LED bulbs to operate 7 light fittings will equate to 35w. The transformer recommended would be a 40va transformer. Transformers like to run at around 80% capacity but not to the maximum. Toroidal transformers are suitable with LED MR16 light bulbs but not electronic transformers.
The colour of a lamp is defined as a measurement called kelvins. A standard GLS light bulb in your house would be 2,700 kelvins which is in the warm colour spectrum and a lamp with 5,000 kelvins would be at the very cold white spectrum. Getting the right colour temperature of a lamp does matter as the warm colour wavelength helps to soften the tone of the area and gives a warm soft relaxed feel and ideal for colourful flower beds and rockery areas especially with wooden bark and at the other end of the scale a 4,000 to 5,000 kelvin lamp colour would be used against a light background such as white walls or to accentuate grey blueish foliage in shrubs and small trees. When you buy a new, energy efficient bulb, keep your application and colour scheme in mind and make sure to buy the bulb with a colour temperature to match.
The amount of light that is produced by a lamp is called Lumens and the more lumens the lamp has the brighter it will be. Lumens work in conjunction with kelvins and should not be taken in isolation of each other, for example if you had a very warm white lamp at 2,700 kelvins and it produced 300 lumens and you then had another lamp which was a cool white 5,000 kelvins which also produced 300 lumens the cooler lamp colour would always appear brighter to the naked eye than the warmer one this is due to the receptors in the eye that react better to a white light spectrum. Another factor on how bright a light may appear is contrast so if you shine a white 5,000 kelvin light on to a dark wall and a warm 2,700 kelvin lamp on to a white wall the warmer lamp would appear brighter due to the contrast of the material it is focused on. So when choosing a lamp always take in to account the area you want to illuminate and think about Kelvins ( colour ), Lumens ( brightness) and contrast ( colour of area ) .
|colour:||white, black, Natural Copper, Rustic Brown, stainless steel 316|
|Voltage:||220 - 240v, 12 Volt|