var tlsOptions = {
secureProtocol: 'SSLv3_method', // undocumented feature!!!
};

var client = this;

client.socket = tls.connect(PORT, HOST, tlsOptions, function () {
console.log('Connected to remote server: ' + HOST + ':' + PORT);
});

Use secureProtocol option if you received error:

[Error: 139927623395104:error:140773F2:SSL routines:SSL23_GET_SERVER_HELLO:sslv3 alert unexpected message:../deps/openssl/openssl/ssl/s23_clnt.c:658:
]

It's because of the different protocol types: server uses SSL3 and node.js tls module uses TLS1).