Best Security Camera Installation in Phoenix AZ

Four light fixtures replaced (not broken), 4 LED bulbs and 1 and a half hours labor, and was charged $550! Is that appropriate??? When I called Kevin for an explanation, he became very defensive and kept repeating that I agreed to pay $400 for 3 fixtures to be installed. When I explained that I thought it was much more involved than it was (each fixture took all but 15 minutes to install) he became even more defensive! He essentially charged me $550 for what a handyman could have done for $40/hr. And that was after waiting almost 2 weeks for them to give me an appointment?Would stay clear away from these thieves! I will apologize if my shock is unwarranted.