Hanging a heavy lamp in Huntonit?

[Nanorch]

I am going to hang up our kitchen lamp (Rejmyre - Troja) and of course, there is nothing in the ceiling to attach it to if the lamp should be centered by the window.

Can you hang a heavy lamp directly in the Huntonite? I'm thinking about some form of an expansion bolt, but will the board hold for that?

 

[bebben]

I believe the shelf itself can handle it, but the question is whether it's secured well enough. By the way, how heavy is the lamp?

 

[Nanorch]

I think the board itself can handle it, but the question is whether it is attached well enough. How heavy is the lamp, by the way?

The lamp weighs 12 kg and is elongated in shape.

I solved it by modifying the suspension frame so that it could be attached with the screw holes that already existed for the cover plate. The ceiling box is apparently supposed to support 15 kg.

The lamp has been hanging up for a day now without falling down, so I hope for even more days without problems

 

[bebben]

Yes, but it works, because the ceiling box is certainly attached to a joist.