Tag Archives: Self Build Lighting

Lighting and KNX Update


I am just getting around to installing the light switches . This is how the finished light switches look at the moment. Later on I plan to change the front plate of this switch to one of the other options such as glass, wood or marble.

This is what the above light switch looked like before installation. Standard switches can be used if one uses the method described below. I used a screened alarm cable to connect the KNX binary device known as a universal interface. This voltage is extra low around 3 volts DC.

KNX Distribution Board

As seen above this is what a typical KNX lighting distribution board looks like. One has a Power Supply (top left) and a programming Interface (next to power supply) . The three actuators (12 way) on separate rows send power directly to the rooms or other devices such as towel heaters. Functionality such as timers, last state before power failure, purging (automatically switching on pumps/valves to ensure they do not stall) etc is already built into the KNX technology.


This is one type of LED Driver I have used to power each LED. Typically when one buys an LED they have already tried to fit all the electronics contained in the above unit in the lamp one buys . This is one reason why led lamps do not always live up to their expected life time of 50,000 hours. The majority of LED failures are due to heat stress. I am using 9 watt LED in the housings shown above and the Power supply is a separate unit. For lower power LEDs one requires less electronics.

Self Build-Images and Lighting Design Progress.

Progress to date.

Passive House

Floor Laying

Floor laying continues with the Junckers System. The floor boards  are 22 mm solid wood with a proprietary clip system. Each of the metal clips (shown below) connect each floor board. The clip type one selects depends on the expected humidity levels in the home. I used a soundproof underlay on the concrete floor. One can also nail this type of flooring.


Skirting Board Lighting

I started the design of the skirting board lighting that will be powered from a DC source (battery) connected to a solar panel. The idea is that this lighting would be on when it is dark and would also act as a lighting system if there was a power failure in order to minimise the use of candles.

The light output of this lighting would be equivalent to a candle and they are placed in bathrooms and corridors in order to allow one to walk around the house at night without switching on the main lights.

A first fix of how they will look is as shown below.