I bought some light-fittings from Migros (pictured) , which generally work by having to drill a small bracket into the ceiling which the light fitting then screws on to.

The problem I have is that the ceiling cavity is 50mm wide, yet the screw holes on the bracket provided with my light fitting are only about 25mm wide. Therefore I cannot fix something to thin air! The hole that the wires are hanging through is a kind of grey plastic piping (50mm wide), so I preume it's some kind of swiss industry stadard as it is also a brand new apartment from a big company

Does anyone know what solutions there is? The lights I bought are from Migros (the turbo spotlight range) so I presume I'm not the only one with this problem!

I think I am looking for something like a 'celing dry lining box' (pictured below) or maybe a kind of plate that fits over the hole that I can feed the wires through and drill the bracket into. However the Migros electric place doesnt have anything like it.


I suspect there may be some widget, perhaps used by swiss electricians etc that can help in this situation. Can anyone help?! Thanks!

One solution is to buy an epoxide resin (in any hardware store) and use it to fill the hole. Then, until the resine becomes hard (or dry) you can introduce the screws directly without drilling nor screwing. It's far too much hard than other resins.