Attaching solar light to stone post - ideas needed

Simply drill, it won't chip off, not even with impact. But if the material is really like pavement / curb and you need 5 minutes for one hole, you simply need a decent drill. In such material, a proper hammer drill goes through like butter. Does the lamp work with solar? There apparently is no electricity there. I see it as a gimmick anyway, the thing will not provide permanent light.

Just drill, it won’t chip off, not even with impact. But if the material is really like pavement / curb and you need 5 minutes for one hole, you simply need a usable drill. In such material, a decent hammer drill goes through like butter. Does the lamp work with solar? Apparently, there’s no power. I see it anyway as a gimmick, the thing won’t provide permanent light.

Yes, yes, that works well. We have already tested it. It goes into a dim mode with low light and into strong light when there is movement. The battery lasts very long. That will definitely work. What do you consider a usable drill? Edit: “Power” is already available on the other side of the post; there is a KNX motion detector for the lighting of the driveway.

What is a usable drill for you?

Quality from Hilti, Single drill bit 10€, set 30€. If you want to attach a lamp to the concrete ceiling and metal shavings and stone dust come out alternately, and you need 5-10 seconds per hole

What is a usable drill for you?

What do you use then? Actually, any hammer drill should get through that quite easily. If it has to be cordless, it needs to be something heavier-duty, those cordless screwdrivers with drilling function are more for very soft material.

Edit: "Power" is already available on the other side of the post, there is a KNX motion detector for the lighting of the access path.

That's great then. Drill through the whole post once and you have power. I would then install something very compact, then you really have peace of mind. Just google Lucande Lengo. It is a bit too wide, but something along those lines is what I mean.

Correct drill (e.g. Hilti), drill without hammer mode and then continue slowly. Of course, you can drill the hole quickly but I wouldn't risk it. Alternatively, there is also mounting adhesive (over 300kg/10cm2) that holds very well. Actually, it is enough if you make a hole in the middle. Then seal/bond with silicone, PU, mounting adhesive.