"This part of IEC 60079-35 details those performance and other safety features of caplights@ including those with a point of connection for another equipment@ not covered in IEC 60079-35-1@ but which are important for the safety and working conditions of the user. It may also be applied to caplights for use in mines not likely to be endangered by firedamp. NOTE When this part of the standard is used as a ""stand-alone"" document for non-gassy mines@ any relevant constructional requirements should be the subject of agreement between the supplier and the user and@ where possible@ be as described in IEC 60079-35-1."