Luminaire for skylight

To learn about all the advantages of backlighting, you can тут.
In this article, we want to look at the assembly of a linear skylight освещения.

We have noticed that most of the clients who come to us have a bad idea about the possibilities of this type of illumination.
The most popular misconceptions:

  • Backlighting is expensive
  • This kind of backlight needs to be maintained
  • You need to put additional recessed lights, as such illumination serves only decorative purposes.
And so in order...

Using the example of a particular luminaire and a particular room, we will try to dispel misconceptions and make it clear.
We will show you a step-by-step assembly and tell you about all the nuances.
Let's calculate other lighting options and compare costs.


The photo shows the living room.

  • The area is about 36 meters.
  • Ceiling height 3.5 meters.
  • Distance from cornice to ceiling 25cm.
  • Length by eaves 6+5*2 = 22м


We have already written how to roughly calculate illumination and let's not dwell on it.
Let's say at once that for basic lighting (350lux), the room must have 49306 lumens – lm
Knowing the total length of the LED strips (distance by eaves) - 22m, we can find out the required luminous flux of the linear lamp.


Under these parameters is suitable Japanese LED module HOKASU Q96 with a luminous flux of 2280lm/m.
To cool this module and increase its lifetime, we will take the angle profile U-A16. It will also help us reduce the loss of light by 5-10%, thanks to the directionality of the light at an angle to the center of the room.

Profiles multiple of 2m. Based on the fact that we have cornices 6m and 5m, we conclude that we need:

  • 10 fixtures of 2 meters each
  • 2 lights of 1 meter each

The total power of the modules, taking into account the 15% reserve is: 481W (19W per 1m).
We will need three 200W units Power supplies over 200W come with a fan, which is too noisy for a living room. We recommend using several identical units of lower power


1. Let's start assembling by cutting the aluminum profile.

2. Next, we glue the rulers (they have a 3M adhesive layer) and solder all the rulers to each other.

3. We connect the finished sections of lights to each other. It is better to connect modules in series not more than 4m. Accordingly, by connecting the power supply from both sides, we can prepare a luminaire up to 8-9m long

4. The finished lights are lifted and laid on our ledge.
There is no need to fix or glue them! With the light on, we need to look at the glow and move the lights around the surface of our cornice if necessary, to achieve the most beautiful result.


  • Extended service life due to cooling against the aluminum profile.
  • Reliability of construction, which is achieved through quality preparatory work not on the weight, but on the floor.
  • Ease of maintenance - the design is removable.
  • Possibility to clean dust from the eaves. No possibility to damage or peel the tape from the profile.