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


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.


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.


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.


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.


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.


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.


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.


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.


Switch off the light!


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.


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


This is bad light.


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


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.


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.


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.


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.


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


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.


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.


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.

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, 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.

My full spectrum daylight ideas may be unique in the whole Europe.

30 09 2012

I like to learn a lot of lighting you never seen before:

  • Indirect lighting with different light shelves
  • Lighting through opal plastic panels
  • Disguising of the basic light fixture on opal plastic
  • Bar light fixture, indirect light in the middle of room
  • Daylight LED panels, dimmable or non-dimmable
  • The newest LED products, LED tubes, E-27, GU10, MR16, E-14, GX53, panels

How to light different rooms at home

  • Lighting of the hall
  • Lighting of the kitchen
  • Lighting of the living room
  • Lighting of the nursery, childproof lighting which increases reading speed and lighting which reduces the fatigue of eyes
  • Lighting of the utility room and of the piece of clothing room
  • Lighting of the toilet
  • Lighting of the bathroom, high-quality mirror cupboard
  • Lighting of the workroom
  • Lighting of the stairs
  • Lighting of the sauna
  • Lighting of a technical state and warehouse
  • Lighting of the home theatre
  • Outdoor lighting
  • Lighting of the negotiation room

Avoid spot lamps and down light lamps, especially in families with children.

Here is a bad and good example.

There was planned near 100 pieces of led lamps (or halogens) in the ceiling. Because there was three children in the family, we took a red pencil and stoke all the down light lamps away. If a child lies on the floor, his eyes goes directly to the brightest light on the ceiling and can see the light several minutes. This is not a healthy situation.

The family tested our indirect lighting and the result is this:

Excellent example of lighting plan

Indirect light in the living room, all bed rooms, kitchen and working room. And when it comes direct lighting (led panels or plafonds), the diameter of the luminaire should be at least 300 mm. If it is only 50 mm or smaller, the light causes bad blending.

Collect a group of  5 – 20 persons, I will keep the lecture on the subject, which is suitable to you.

  • Lighting of the home and colours
  • Daylight as interior decoration element of the home
  • Lighting of the home – the most important interior decoration element
  • Lighting which increases work satisfaction and industrial safety

We tell about the significance of the daylight light as interior decoration element of a home and job. You see good examples of the separate premises of the home which have been lit well and stylishly. Up for discussion there are undazzled alternatives of the direct and indirect lighting and examples of the traditional ways to light also. With the lecture it is dealt with

  • significance of the lighting planning in building and decoration. In the comparison it also is traditional and ledLED lighting.
  • I advise how to choose the right lamp to home and to job.

The lighting ideas are emphasised

  • advantageous
  • energy saving
  • child safety and fire safety
  • in work lighting raising of the vigour state and improvement of industrial safety and feeling happy with the lighting

Read more.

A new house full of full spectrum daylight

1 01 2012
This house is fully illuminated with Viva-Lite full spectrum daylight lamps. There are totally 49 lamps. You can enjoy this kind of lighting for decades. The interior colors are natural, true. Lighting solutions are long-lasting, chosen on sustainable basis, energy-friendly. Residents of the house are is very happy with the lighting. The carpenter was surprised, because he could see very well in this light, even without glasses. Seeing in normal warm color light was a challenge for him like for many others. The quality of the pure light is amazing, therefore, it has to be seen.
In 2015 similar house would lighted only with led lamps and the result would be as good.

The Sounding Dome Sauna with full spectrum daylight LED lamps

28 05 2011

The garlic-shaped sauna, The Sounding Dome Sauna, designed by Jan-Erik Andersson is imaginative and fairytale-like.

the Sounding Dome Sauna,

the Sounding Dome Sauna

The sauna incorporates a soundscape created for it by the American sound artist Shawn Decker. The sauna’s world of sounds changes with the temperature and the humidity – once you throw water on the sauna stove, the sauna’s world of sounds will change. The sounds will emerge from the ”tops” of the garlic. The sauna is located in the historical Kupittaa Park in the outdoor swimming pool area opened in 1912.

The lighting of the sauna is also very special. There is an indirect full spectrum daylight LED lamps, only 13 W.   Read more.

The water oasis in Finland’s oldest and largest city park, Kupittaa Park, has three swimming pools and the visitors can enjoy a 27 C-degree-warm swimming water.  The Museum Centre of Turku is responsible for turning up the heat.

Listen the sounds of the sauna. Welcome, enjoy!