Disposalight Pen Torches(6) Description These disposable pen torches are suitable for using when carrying our medical procedures or examinations in the surgery. Pen torches can either be disposed of or the user can replace the battery once it has run out. 6 Supplied. ;; Disposalight Pen Torches(6) Description These disposable pen torches are suitable for using when carrying our medical procedures or examinations in the surgery. Pen torches can either be disposed of or the user can replace the battery once it has run out. 6 Supplied.