diff --git a/tplink_smartplug.py b/tplink_smartplug.py
index 11c3d3b..981531f 100755
--- a/tplink_smartplug.py
+++ b/tplink_smartplug.py
@@ -34,11 +34,26 @@ def validHostname(hostname):
 		parser.error("Invalid hostname.")
 	return hostname
 
+# Check if port is valid
+def validPort(port):
+        try:
+            port = int(port)
+        except ValueError:
+            parser.error("Invalid port number.")
+
+        if ((port <= 1024) or (port >65535)) :
+            parser.error("Invalid port number.")
+
+        return port
+
+
 # Predefined Smart Plug Commands
 # For a full list of commands, consult tplink_commands.txt
-commands = {'info'     : '{"system":{"get_sysinfo":{}}}',
+commands = {		'info'     : '{"system":{"get_sysinfo":{}}}',
 			'on'       : '{"system":{"set_relay_state":{"state":1}}}',
 			'off'      : '{"system":{"set_relay_state":{"state":0}}}',
+	    		'ledoff'   : '{"system":{"set_led_off":{"off":1}}}',
+			'ledon'    : '{"system":{"set_led_off":{"off":0}}}',
 			'cloudinfo': '{"cnCloud":{"get_info":{}}}',
 			'wlanscan' : '{"netif":{"get_scaninfo":{"refresh":0}}}',
 			'time'     : '{"time":{"get_time":{}}}',
@@ -95,6 +110,8 @@ else:
 # Parse commandline arguments
 parser = argparse.ArgumentParser(description="TP-Link Wi-Fi Smart Plug Client v" + str(version))
 parser.add_argument("-t", "--target", metavar="<hostname>", required=True, help="Target hostname or IP address", type=validHostname)
+parser.add_argument("-p", "--port", metavar="<port>", default=9999, required=False, help="Target port", type=validPort)
+parser.add_argument("-q", "--quiet", dest='quiet', action='store_true', help="Only show result")
 group = parser.add_mutually_exclusive_group(required=True)
 group.add_argument("-c", "--command", metavar="<command>", help="Preset command to send. Choices are: "+", ".join(commands), choices=commands)
 group.add_argument("-j", "--json", metavar="<JSON string>", help="Full JSON string of command to send")
@@ -103,7 +120,7 @@ args = parser.parse_args()
 
 # Set target IP, port and command to send
 ip = args.target
-port = 9999
+port = args.port
 if args.command is None:
 	cmd = args.json
 else:
@@ -119,7 +136,13 @@ try:
 	data = sock_tcp.recv(2048)
 	sock_tcp.close()
 
-	print("Sent:     ", cmd)
-	print("Received: ", decrypt(data[4:]))
+	decrypted = decrypt(data[4:])
+
+	if args.quiet:
+		print decrypted
+	else:
+		print "Sent:     ", cmd
+		print "Received: ", decrypted
+
 except socket.error:
 	quit("Cound not connect to host " + ip + ":" + str(port))