What is a Lumen?
A Lumen is measuring unit used as a measure of the total quantity of visible light emitted by a source. As LED lights are far more efficient than traditional lighting Lumens is now the standard for measuring how bright a light source is.
So Lumens are all about brightness, not Wattage.
To help you choose the right level of lighting we have made a guide:
Traditional Incandescent Bulb Lumens LED Replacement
40W 450 11W
60W 800 15W
75W 1100 20W
100W 1600 22W
Colour Temperature Explained
Colour temperatures are measured in Kelvin and are symbolized by the letter K. The higher the Kelvin rating, the whiter and then the bluer (Cooler) the light appears.
The lower the Kelvin rating the more yellow (warmer) the light appears.
Contrary to popular belief a higher colour temperature is not a measurement of brightness but the colour of the rendered light, brightness is measured in lumens. Cooler lighting will appear to be slightly brighter than warmer lighting as the human eye picks up blue wavelengths of light more than yellow.
What colour temperature to choose?
Warm White lights are 2700k to 3000K which gives off a similar colour of light to a traditional halogen bulb. Warm White LED’s will appear slightly whiter than a halogen but has a more orange colour. This colour of lighting is best suited to creating a warm welcoming atmosphere and is normally used in living rooms, bedrooms and dining rooms.
Neutral White lights are 4000k which are brighter and clearer in appearance and are normally used in kitchens, bathrooms and commercial locations. This colour temperature complements modern and contemporary areas as it is a fresh and bright light. Neutral white is very effective at creating a focused environment which is why is it a popular choice of colour temperature for work environments.
Daylight White lights are 5000k to 6500k are perfect for creating a natural lighting effect. Daylight White mimics natural light and can be comfortably used anywhere.
The beam angle of a lamp is the angle at which the light is distributed or emitted.
LED Lighting comes in a variety of angles from, 10 degrees to 60 degrees with some of the lights up to 120 degrees.
For most domestic household ceiling fitted appliances a beam angle in the 30-40 degrees will be sufficient given the
standard height of ceilings and the range, spread and number of light bulbs in the area.
Choosing the right beam angle for you
One of the best examples of using a wider beam such as 60 degrees would be in a living room. Living rooms don’t need to be as bright
as other rooms and are usually illuminated to around 150 lux, comparatively a kitchen should be around 300 lux as you need to see what
you are doing more clearly. By using a wider beam you can space out your lights further apart, normally spotlights should be 1 metre
apart but with a wider beam angle, you can go to 1.2 or 1.5-metre distances.
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