Question about Philips Hue White & Color Ambiance Datura

I don't think Philips give any recommendations because the installation depends more on your ceiling than on the lamp...

The Datura is heavy, very heavy, for a lamp, but 4kg isn't much for a screw suitable for the ceiling.

I also have a concrete ceiling, so I used two 4.5x35mm screws with 5x25mm plugs. Depending on the size of the heads, a washer may be necessary.

2x dowels 5x25 with screws 3.5x35mm. Drill with 5 mm drill bit. Lasts more than enough🤙