I purchased my security cameras at a retail store. After contacting many of the "well-known installers" in Miami, l was not able to get anyone to do the installation because l had to get their own cameras installed instead. Lastly l got in contact with Dicsan, thank God for that! I was provided with a very good pricing and was able to get my cameras installed the following day. Overall I'm very happy with the fast service they provided and am truly thankful because l really did need the camera installation urgently and l couldn't return my purchase. Thank you again!!