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    Are you ready for POE lighting?

    Cat6 sales are going to soar if this catches on. Saw it posted on another forum- POE powered 2x2 drop-in fixtures and dimmers from Ubiquiti. Looks like the IT geeks will be installing lighting now.

    https://store.ubnt.com/collections/led

    -Hal

    #2
    yea and we know how those IT guys follow wire size and watts , they'll be overloading stuff and melting things all over the place.
    The NEC will be placing arc fault devices and new codes.

    Comment


      #3
      I don’t see it...

      As lights get more efficient, we are able to daisy chain more and more on each 120 or 277v circuit, which makes wiring easy and straight forward. Who wants thousands of extra runs of network cable to run and terminate?

      Any of the benefits of having the lights connected to the network can also be had using currently wireless technology. My niece was so happy to show me how she can control the brightness and color of her bedroom light with her iPhone

      Comment


        #4
        Now that you mention it.....

        I worked for Redwood Systems before CommScope bought them (8-9 years ago?). LED fixtures powered over CAT5 (or any wire, really), PWM dimming, network control, daylight harvesting, motion detection with "follow me", etc etc etc. It was actually a fairly good design, shame they basically went nowhere.

        IIRC a big problem was maintaining Class 2 compliance; some fixtures need 2 or 3 pairs to get enough power (the LED strings were separated for this).

        Comment


          #5
          Originally posted by hbiss View Post
          Cat6 sales are going to soar if this catches on. Saw it posted on another forum- POE powered 2x2 drop-in fixtures and dimmers from Ubiquiti. Looks like the IT geeks will be installing lighting now.

          https://store.ubnt.com/collections/led

          -Hal
          Your link is full of information on how many of these one can power from the source at a time-----not.

          I know LED's are efficient compared to other light sources, but aren't we talking about 24 AWG conductors and only 24V (if that) max from the source? One cable is not going to power that many luminaires before it is overloaded - and that is even before considering what the source can deliver. One circuit with 12 AWG and 277 volts AC can possibly power all lights on entire floor in many places.
          I live for today, I'm just a day behind.

          Comment


            #6
            Just seems like cat 5/6 and poe isnt the ideal cable for this. It was designed for other uses. That said, some sort of class 2 or 3 lighting system that is plug and play, could be a real time saver. Maybe we will see such things with the advent of lighting that uses less and less energy.
            Ethan Brush - East West Electric. NY, WA. MA

            "You can't generalize"

            Comment


              #7
              Originally posted by electrofelon View Post
              Just seems like cat 5/6 and poe isnt the ideal cable for this. It was designed for other uses. That said, some sort of class 2 or 3 lighting system that is plug and play, could be a real time saver. Maybe we will see such things with the advent of lighting that uses less and less energy.
              POE lighting can possibly have some usefulness, but not for lighting an entire floor or even an average size office room.
              I live for today, I'm just a day behind.

              Comment


                #8
                Originally posted by kwired View Post
                Your link is full of information on how many of these one can power from the source at a time-----not.

                I know LED's are efficient compared to other light sources, but aren't we talking about 24 AWG conductors and only 24V (if that) max from the source? One cable is not going to power that many luminaires before it is overloaded - and that is even before considering what the source can deliver. One circuit with 12 AWG and 277 volts AC can possibly power all lights on entire floor in many places.
                Daisy chain? Each fixture is a home run back to the POE switch just like a network jack.

                Who wants thousands of extra runs of network cable to run and terminate?
                The IT guys, that's who.

                -Hal

                Comment


                  #9
                  Originally posted by hbiss View Post
                  Daisy chain? Each fixture is a home run back to the POE switch just like a network jack.



                  The IT guys, that's who.

                  -Hal
                  Hope that was sarcastic response. Large building probably still would cost less to run conventional 277 volts then all those CAT5/6 cables if every one of them needs a home run.
                  I live for today, I'm just a day behind.

                  Comment


                    #10
                    Absolutely sarcastic. This is just another toy that the techies think is a great idea but in the real world just isn't practical. They would love for everything to be a part of the IoT and be controlled by your cell phone.

                    -Hal

                    Comment


                      #11
                      I have never understood the way a lot of these guys in IT wire up places. I always used routers or switches.. wire from one to another and have a bunch of outlets in a new location.. daisy chaining... but the guys are taught to run only from one place now.. yet they still have all the switches and routers...
                      just ten times or more in wire...

                      and the code now... none of the new code writers could make Fortran work on a PDP 8 e
                      Student of electrical codes. Please Take others advice first.

                      Comment


                        #12
                        Are you ready for POE lighting?
                        I can recall the T8 revolution, followed by the T5's, only to be ousted by the LED one

                        Each retrofit predicated itself on either saving a $$, or the planet

                        While being a spark, or worse an EC required us to cheerlead it all on

                        So here we go again.....riding the creast of the green wave....

                        Is a mask & cape needed?

                        ~RJ~

                        Comment


                          #13
                          [QUOTE=hbiss;1935906] Looks like the IT geeks will be installing lighting now.



                          -Hal[/QUOTE
                          Not in Washington anyway, our state L&I made a change some years ago to restrict POE lighting to those who are certified, IE journeylevel, limited energy. Our telecom installers do not have to be certified, however telecom contractors are licensed.
                          Moderator-Washington State
                          Ancora Imparo

                          Comment


                            #14
                            Originally posted by hbiss View Post
                            Cat6 sales are going to soar if this catches on. Saw it posted on another forum- POE powered 2x2 drop-in fixtures and dimmers from Ubiquiti. Looks like the IT geeks will be installing lighting now.

                            https://store.ubnt.com/collections/led

                            -Hal
                            well, as others have said, this dog won't hunt.

                            let's say that a typical 2x4 led drop in fixture pulls 39 watts.
                            most of them do, to simplify T24 compliance in Calif.... land
                            of green buildings and red fires.

                            keeping to an 80% circuit load, that comes to 113 fixtures.
                            per 20 amp 277 circuit. so, how many POE drops are we gonna need?

                            now, you say "but we can have all the controls ran over POE".
                            why would you want to?

                            http://www.lutron.com/en-US/Products.../Overview.aspx

                            wireless controls. program with a cellphone. a wireless hub.
                            i watched a guy set one up in a 40k sq. ft. occupancy.
                            less than a days work. T24 compliant, daylight harvesting, load shed, scenes, everything.

                            no knowledge of controls or much of anything required for fixture install.
                            a hot from the panel unswitched, looped fixture to fixture. black, white, green. duh.

                            programmer doesn't need to be an electrician. cellphone, green pen laser, and a bit of
                            training.

                            if you are a sparky, and you have not learned how to program lighting controls,
                            you are moving in the wrong direction.
                            ~New signature under construction.~
                            ~~~~Please excuse the mess.~~~~

                            Comment


                              #15
                              notice it works at 434 Mhz... hmm... need to go back and check but, seems that a lot more interference can happen there as the frequency travels further... thus it is more liable to interfer with neighbors.. like a block away..lol...
                              Student of electrical codes. Please Take others advice first.

                              Comment

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