Going to install window grilles on my upcoming HDB, but is concerned about the safety of the invisible grilles. I saw videos on how easily the invisible grilles wire can be cut and burnt. Anyone had any experience to try to burn or cut the wires? I saw the company doing those videos is part of Endo Grilles, thus should be true, right? Since they are also selling invisible grilles?

Please advice

www.youtube.com/watch?v=_WWvdRlyjwc

www.youtube.com/watch?v=1J_nZaZbCmI