Very Strong indeed. The pictures below illustrate a test that we regularly do at our offices, where we knock a lamp off a table. Here you can see that, not only does the candle go out, it hits the ground and does not break.
They wil withstand falls of three feet or more, onto wooden and carpetted floors.
Our rustic range will survive a similar fall on to slate or even concrete.
Teetering on the edge!
In the air!
Hits the deck!