Lighting at the Housing fair in Finland 2015

14 07 2015

The annual Housing Fair in Vantaa 2015 is the 46th event of its kind. 98% of Finland’s adult population knows the event. Lighting designer Ilkka Pekanheimo has evaluated the lighting of the houses at the Housing fair in Vantaa.  This leaflet tells more about the idea of housing fairs.

It’s amazing to think that even though we spend two-thirds of our time living under artificial lighting, we’re not paying attention to the consequences of this light for our body and mind. Whereas people are concerned about organic food, pure water and clean air, the element by which our very life came into existence – light – is often forgotten.

At the House Fair 2015, there were houses, where all lighting was done by using led lamps. This leads to a new problem in lighting:  led strips are reflecting from the shiny surfaces. Hence, one should choose the type of surface before lighting with led strips. Do not choose black shiny surface to the kitchen if you use led strips. If you choose shiny surfaces, choose indirect lighting.

One problem at the fair were blending lights, unfortunately found in almost all the houses. The colors of the interior were made incorrect by lighting in almost all the houses.

There is no 100 % correct opinion on the lighting. I hope that this evaluation would create discussion and would contribute to make the lighting quality better in homes in Finland and in the whole world.

In my Finnish blog you can see 400 lighting pictures. If you would like to see 6000 home lighting pictures more from Housing fairs 1998 – 2014, contact Ilkka Pekanheimo.

Best lightings

  • House 22, LakkaLaine.  Excellent indirect solutions, only a few glaring luminaires. The color rendering index of the lamps was not good.  The color temperature is too low.
  • House  26, Villa Kapee.Excellent indirect solutions, only a few glaring luminaires. The color rendering index of the lamps was not good.   The color temperature is too low.
  • House 29, Villa Chili.    Excellent indirect solutions. The color rendering index of the lamps was excellent.  The light was pure white, the color temperature was 5000 – 5500 K. Beautiful colors, no glaring. In utility room you can see comparison of light: red chili in the right box is lighted with 5500 K light and in the left box with 2900 K light.  You can see also the difference in the color of the flower. The difference is amazing.

In fact, Villa Chili is the only house at housing fair, which is lighted with 5500 K daylight. If I would evaluate only the light quality, lacking of glaring, and the correct colors of interior design, Villa Chili would be the winner.

Some good and bad examples from the fair

17

A daylight led strip (5500 K) is installed into aluminium bar, painted with white. The bar is in the position of 45 degrees and light is directed to the wall. The wall is painted yellow like yellow chili. This color makes a warm atmosphere to the room. The daylight led shows the color of the wall as original.

11

There is a led strip (5500 K) at the front rand of the kitchen cabin. It is directed to the back wall with help of the aluminium bar in the angle of 45 degrees. You can see very well on the desk, no glare, no reflecting light. The wall is painted yellow.

02

All working surfaces should be lighted. You should put indirect lighting also on the cabin. The light color of the kitchen hood should also be the same color. Children and short people should not see the light under the cabin.

10

Better alternative would be indirect lighting. These small led luminaires cause a restless atmosphere and too little light in the room. I prefer 5500 K led panels and bigger size.

13

A daylight led lamp in outdoor luminaire should show the colors of the nature as original. In this luminaire the lamp is too yellow. Also in the winter the snow would be white in daylight lighting. If you have dogs in the house, it does not matter. A better alternative for bollard luminaire is indirect lighting: put the led strip on the upper rand of the white wall and put a small moulding on it so that you will not see the strip, only the reflecting light.

11

Avoid these upwards directed luminaires. They cause a very bad glare, when you walk near the luminaire or when the children crawl on the floor. They have no lighting meaning, maybe they light only the birds, which are flying over. This is a useless luminaire.

16

When you paint the ceiling with strong red color in the children’s room, it may be a color psychological mistake only if it is strong red. Avoid also small led lamps, they are too bright when you see them from the bed.

08

A good way to light a bathroom. The 3 mm opal plastic should be ca. 72 % transparent and you can light it with led strip or led tube.

09

Switch off the light!

13

Try 5500 K 8 – 12 W daylight lamp in these luminaires. The luminaire turns pure white and the colors in the room correct. You can also see better in the room.

03

A led strip is reflecting from the dark working desk. Avoid this by using 45 degree aluminium bar for led.

06

This is bad light.

04

This is good lighting. In the evenings you need candles on the table.

06

Indirect light is a beautiful way to light. The light should be continuous no dark intervals should be. I prefer pure white, 5500 K daylight. This is too yellow. You do not need the small lamps on the ceiling. They make a restless atmosphere.

13

Lighting by RGB is according to my opinion an unnecessary trick. There are no studies to show, how the continuously changing color affects to peoples well-beeing. The effect is not undoubtedly positive. The eyes will strain, when they always must adapt to a new color world. Also the color of interior decoration changes all the time.

14

An excellent non-glare way to light a jacuzzi. How ever, this light may be the “white” from RGB. The color rendering index of RGB white is only 20, so never use it. A continuous changing RGB here is awful, but it is my opinion. Do not care about it.

06

An indirect lighting near to timbers is an excellent way to light. Even better, if you use 5500 K pure white light. The color of the wood would be original.

07

I would put colorful paintings on the wall and not these luminaires, which are changing the color of the wall. Lighting by indirect way.

01

The spot lights in the light bar is an easy solution but not elegant. The lamps are very glare when you look at them. The colors of the interior decoration will be destroyed because of the bad quality of the light. Too yellow, may be 2900 K. It should be 5500 K, in my opinion.

01

The correct installing place of the led strip is in front of the cabin and it should be directed to the back wall. You should not see the light at the long distance of the kitchen to the room. It has no use.

01

This is one of the worst way to light. The light causes glare and when it has a 2700 K lamp, the light destroys the colors of the room. If possible, turn the lamps towards the ceiling.

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Lighting ideas, which are suitable with T5 LED tubes

10 06 2015

Please contact the managing director of AD-Lux Oy, if you like to see the missing pictures in this article. He has  “destroyed” the pictures from the server. 

Since the origin of life, the light has guided us, our activities and our biological clock. We feel the best in the natural light outdoors, where intensity and color changes all the time. With dynamic light we can create better lighting with people in focus.

Lighting affects how we see our surroundings. Dynamic lighting for the future houses goes further, affecting impacting how we think and feel too.

The fact that blue light activate and warm light calms, in increasing substantiated, it is all about imitating the natural light and its variation that has controlled our biological clock since the origin of life.

Where do we apply solutions with color temperature control? The answer is: in any room with limited access to daylight or rooms where for any other reason want to be able to vary the color temperature.

Our preference for color temperature isn’t static, sometimes we want a cold, activating light, sometimes warm, relaxing light.

The biological clock, also called the circadian rhythm and plays an important role in regulating wakefulness and sleep. If we can help that clock, we can help people feel better. By designing good lighting systems, lighting can help increase concentration and motivation and to improve subjective and objective well-being.

The ideal is simply to imitate natural light, both in level and color during the day. Cold, intense light with a high blue is activating, warm dimmed light is relaxing.

Why daylight also inside the house? Lighting in home and work environment has the past decades been monotonously warm, yellowish and not showing colors correctly. A question arises: why? You have to try it to believe. We recommend you to test before moving to daylight because of the big difference from traditional lighting. Lighting and colors are a big part of the whole of living. They have an affect on functionality and comfort but also on atmosphere.

Goals of good lighting design human and eyefriendly lighting non-glaring result child- and firesafe lighting lighting that helps your seeing also with older eyes colours of interior are shown as they are overall economic and energy saving solution isn´t harmful to climate change

In the evening light could be warm-toned, ”more ambient” light, especially if light is not needed e.g. for reading. Finally you can turn off the lamps and light candles. Many people become so fond of daylight type light, that they want to have it all day long, also in the evening.

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Our preference for colour temperature isn’t static, sometimes we want a cold, activating light, others a warm relaxing one. Our preferences for light can also differ with age; the young are inclined towards a colder light while as we get older this changes to warm.

Lighting with modern led tubes is not expensive. This is because no luminaire is needed. Only lamp holder and wire to each end of the tube. The wire will be connected to 230 V and no ballasts are needed.

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Here are some examples of different rooms, where led tubes could be used.

Kitchen

Correct place of led strip under the cabin. in the front side of the cabin, the light should go to the direction of back wall.

Correct place of led lamp under the cabin is in the front side of the cabin, the light should go to the direction of back wall.  In this picture led strip is used but led tube is more economical.

One of the most important things to consider when choosing a kitchen hood is to get enough light on the stove. The lamp should not glare from the stove, which is normal with led or halogen spots. Better solution is led tubes, 600 mm.

Stairs

Excellent lighting of stairs, led strip.

Excellent lighting of stairs, T5 led tube.

 

Just get one wooden panel away and put opal plastic (3mm, 72 %) instead of it. And led tubes in 5 cm distance of the plastic panel. No other light is needed in the whole room.

Indirect lighing. Unfortunately the yellow color of the lighting destroys the colours of interior decorating..

Indirect lighting

 

Lighting with daylight led tubes. You could install on the other side also 3000 – 4000 K led tubes and put light there on the evenigs.

Good indirect lighting, but with daylight led strips you could get it even better.

Good indirect lighting, but with daylight led lamps you could get it even better. You can use 1-2 warm tone led tube ans use them only in the evening.

Wooden panel with led strips. Use full spectrum leds, 5500 K, it shows also the wood color original, not yellow like here.

Wooden panel with led lamp. Use full spectrum leds, 5500 K, it shows also the wood color original. You can use this solution in every room.

Valoa voisi olla hieman enemmänkin. (7)

Päivänvalovalaistusta voidaan himmentää.

 

Led tubes are  good solution here. You get indirect light.





Light Symposium in Stockholm

19 03 2015

valo15lighting designer

It’s amazing to think that even though we spend two-thirds of our time living under artificial lighting, we’re not paying attention to the consequences for our body and mind. Whereas people are concerned about organic food, pure water and clean air, the element by which our very life came into existence – light – is often forgotten. And most important is the light quality.

The Light Symposium was held during the International Year of Light 2015 Mach 19-20. The objective of the Lighting Symposium 2015 was to be part of and contribute to the International Year of Light. The purpose was  to increase the level of the discussions and general knowledge in the field of Architectural Lighting Design.

Many participants prefer daylight and are bringing daylight from windows inside to the room. However, what about, when the evening comes? Many have not thought that they could simulate daylight inside the room at daytime. They accept the normal  warm light, e.g. 2700 K, which destroys the colors and makes the reading speed slower.  Some have tried 6500 K light and have been disappointed. Please test 5500 K daylight, which has high CRI, 93 – 95. You do not find any difference between the natural daylight. I prefer blue light the morning (e.g. with Litebook or other light therapy box) and 2700 K late in the evening.  A tiny orange/red light, when you go to the WC at night, does not affect the melatonin production.

Here are some interesting lighting links:

The benefits of the newist LED tubes

  1. The risk for fire accidents by old magnetic ballasts will be eliminated.
  2. There is no 50 Hz flickering, like fluorescent lamps, The flickering causes stress and eye strain and head ache. LED tubes have direct current.
  3. You save a lot of energy.
  4. The payback time is  short, e.g. 2 years.
  5. Led  tube is very long lasting.
  6. If old luminaires are still good looking, you have not to buy new luminaires. You could take the gridiron away and replace it with opal plastic and the luminaire looks nicer.
  7. You replace only the fluorescent tube with led tube and replace the starter. If the luminaire has electronic ballast, no starter is needed, if you uses the high quality led tubes.
  8. The light quality of the best led tubes is good, 5500K,  CRI 95. It you have just bought normal led  tubes with 3000 – 4000 K,  you should replace them with daylight tubes. After that you can see better, read faster and see the colors ecactly.
  9. Led tubes saves the nature.
  10. The indirect lighting of the room will be cheaper with led tubes than with led strip. Use T5-tubes.

More information:  ilkka.pekanheimo@gmail.com





The lighting evaluation of the housing fair in Finland 2014

22 07 2014

In my Finnish blog you can see over 300 lighting pictures. If you like to see 6000 more home lighting pictures from Housing fairs 1998 – 2013, contact ilkka.pekanheimo@gmail.com

adlux.wordpress.com, here are only a few examples:

Wooden panel with led strips. Use full spectrum leds, 5500 K, it shows also the wood color original, not yellow like here.

Wooden panel with led strips. Use full spectrum leds, 5500 K, it shows also the wood color original, not yellow like here.

Avoid these lamps,  too bright,   awful lighting method.

Avoid these lamps, too bright, awful lighting method. Indirect lighting is much better.

Excellent lighting of stairs, led strip.

Excellent lighting of stairs, led strip.

Good indirect lighting, but with daylight led strips you could get it even better.

Good indirect lighting, but with daylight led strips you could get it even better.

Correct place of led strip under the cabin. in the front side of the cabin, the light should go to the direction of back wall.

Correct place of led strip under the cabin. in the front side of the cabin, the light should go to the direction of back wall.

Most of them are bad examples:

  • too bright lamps,  spotlight, dazzling lamps
  • warm tone lamps (2700 – 4200 K), which destroys the colors
  • destroys totally he work of interior decoration designer
  • lamps, which have no full spectrum

However, there are also good examples, e.g. indirect lighting. The whiter light – the better, if the type of the light is full spectrum. I recommend 5500 K. 6000 K is too blue.

Ask my comments from some pictures.  ilkka.pekanheimo@gmail.com





Habitare / Light fair in Helsinki in September 2013

6 10 2013

WT4-valolistan päällä on päivänvaloledinauha. Valo on puhtaan valkoista.

Habitare/Light fair (5 days) was excellent and very successful for me. There were over 54 000 visitors and this is much, because there is only 6,5 million people on Finland.
I had a 30 min. lecture every day.  This lecture was hold three times:  “Led lighting is coming – are you ready”. This was hold twice:  Daylight lighting as an element of  interior decoration.

After the lecture many people came and handshaked me, they told that the lecture was so excellent. The lighting and led information was so new for them.

I was also interviewed in Radio Nova, which is very popular in Finland, during the fair.  No other company at the light fair got such a publicity.

 





One of the best lighted houses in Finland

9 06 2013

It’s amazing to think that even though we spend two-thirds of our time living under artificial lighting, we’re not paying attention to the consequences for our body and mind. Whereas people are concerned about organic food, pure water and clean air, the element by which our very life came into existence – light – is often forgotten.

Päivänvalovalaistusta voidaan himmentää.
One of the best lighted houses in Finland, (June 2013) no halogens or GU-10 LED or similar lamps. A lot of light in a room, no blending, you do not need any ceiling luminaires. The customer is very satisfied. You can do the same with led lamps (strips and panels) but not with spot lamps.
Also this house is lighted near totally with indirect daylight, the customer is very satisfied.

A house lighted with full spectrum daylight at housing fair in  2009. Today I light more and more by daylight led lamps of highest quality. Look the video.