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Frequently Asked Questions
What is LED technology exactly?
LED is the abbreviation for 'Light Emitting Diodes'. An LED is a semiconductor which emits light. A single LED is small and gives relatively small light output. By grouping them the light output increases. The colour of the LED depends on the material used. All the characteristics of the LEDs used together determine the emission angle, luminous flux, light intensity and colour display.
What are the advantages of an LED bulb?
- Uses only 6 Watts to replace an incandescent light bulb of 60 watts
- Lasts up to 50 times longer than an incandescent light bulb
- Lasts 8 times longer than CFL bulb
- Fits in a regular E27 fitting
- Produces pleasant, warm light
- Are safe, the bulb does not get hot in a normal light fitting
- Does not use harmful materials, so the bulb is completely recyclable
Does an LED give the same kind of light as an incandesant or CFL light bulb?
Yes, these LEDs are comparable with the light coming from CFLs and incandescent bulbs.
What should I pay attention to when I am buying an LED?
When purchasing an LED you should pay attention to the amount of Lumen and Kelvin it produces. Lumen tells you the light output. The more Lumen, the more light the LED bulb gives. Kelvin gives you the colour of the light. The smaller the degrees Kelvin, the warmer the light of the LED.
For what purposes is LED technology also used?
- In modern traffic lights
- In small domestic spotlights and in Christmas lights
- In small lighting units from/near the ground in gardens etc.
- In modern shelf lighting in shops and supermarkets
- In some new street lamps
How are the LEDs tested?
The NMI (Dutch measurement institution) has tested the LEDs on light output, power and colour in so called 'climate chambers'. Besides that the LEDs have both a CE and a KEMA hallmark.
Why is the lifetime of the LED bulb so much longer?
The bulb is based on proven LED technology used in equipment with a long lifetime.
What if the LED doesn't last as long as promised?
The tests have shown that the promised 50,000 hour lifetime is feasible. That is why we give a guarantee on our LEDs.
Could you explain the difference between a regular incandescent bulb and an LED bulb?
The energy use of the Pharox LED is only 10% of that of a normal incandescent bulb.
Could you further underpin the statement that the LED bulb has such a long lifetime?
In principle the quality and performance of the Lemnis LEDs does not decline due to usage. The superior epoxy lens in which the diode is set and the mounting of the 'dice' (6 - 12 LEDs) to the heat-sink (cooling-frame), is the main reason why they have such a long lifetime.
To which advantage could this lead?
The advantages are dual.
- Firstly, you can save up to 80% of the electricity consumption from the lighting part in your energy bill, because you waste less energy.
- Secondly, you protect the environment because you emit less CO2.
How expensive is the LED?
This LED is not expensive at all! You should ask yourself: what do I save using this bulb?
The cost of the LED is recovered within 2 years and after that you can profit from it for years more.
For what purposes could Pharox LEDs be used?
Pharox LEDs are applicable for most purposes due to the regular E27 fitting.
How do you measure light?
Light is measured in Lumen and a few other units which measure the light experience.
How high is my energy consumption on lighting?
According to independent research lighting may amounts up to 16% of your total energy consumption.
Why should I replace my incandescent bulb with an LED?
LED is a new technology that is 90% more energy efficient than incandescent light bulbs. Furthermore the LED lasts for more than 20 years. That's good for your wallet and good for the environment. Besides that, the incandescent bulbs will be phased out as of 2010.
I think a CFL is just as economical as an LED.
It's true that a CFL bulb is much more efficient than an incandescent bulb, but an LED is even up to two times more efficient and has a much longer lifetime!
Does an LED fit in my current fixture?
That should be no problem. Currently you could replace an incandescent bulb with a large fitting. Shortly LEDs with small fittings and different dimmable Wattages will be available.
Is the LED good for the environment?
The materials used are as much as possible environmental friendly materials. If the LED unexpectedly breaks, you can dispose of it with your regular household waste (100% recyclable). This in contrast to CFL bulbs: they contain mercury and are harmful to the environment.
Do you get instant light with the LED?
Yes, just like a regular incandescent bulb, you get instant light. This in contrast to CFL bulbs.
How certain is the lifetime of the Pharox LEDs?
In general LEDs consist of large amounts of small standardised LEDs of 3 or 5 mm in epoxy casting. These kind of LEDs have trouble losing their heat, which causes the useable lifetime of only 5,000 to 10,000 hours. The white light gets more and more blue. Lemnis Lighting developed its own light source which can cool the heat of the chips to the metal frame. The integrated light source is tested in climate rooms and under extreme thermal conditions. Based on these tests a lifetime of 50,000 hours has been deduced, with a 70% preservation of light. The current light source is now 2 years in production and also 2 years tested. After 17,500 hours it still gives more than 90% of the original light output.
Are incandescent bulbs one on one comparable with LEDs?
Tests conducted by TÜV found that LEDs have other characteristics than CFL and incandescent bulbs. That is why it is important which fixture is used when LEDs are compared with incandescent bulbs. An incandescent bulb gives a round radiation, a CFL bulb gives a kidney shaped radiation and an LED bulb gives a conical radiation.
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