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Converting 25 8'x2 fluorescents to LED - 30' ceiling warehouse

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    Converting 25 8'x2 fluorescents to LED - 30' ceiling warehouse

    Hi. My first job with fluorescent LED replacement. This is for a large t-shirt printing facility. 30' ceilings.

    Any recommendations/experience with brands to use? website? lumens & color temperature?

    I plan to keep existing fixtures and use LED lamps, by-passing ballast.

    Thanks

    #2
    Keystone is a popular brand. 4000K minimum, 5000 is even better IMO.

    Be sure and rent a scissor lift.
    If Billy Idol is on your playlist go reevaluate your life.

    Comment


      #3
      Originally posted by dinotone View Post
      I plan to keep existing fixtures and use LED lamps, by-passing ballast.
      I agree 100% about taking the ballasts out of the circuit!
      Master Electrician
      Electrical Contractor
      Richmond, VA

      Comment


        #4
        I only have a little experience with this. Each time I had to replace the tombstones on the feed side of the LED tube with different non-shunted tombstones. The first time I did not expect this and switched on to a bolted fault. I also did this first replacement in my own shop...

        Comment


          #5
          Originally posted by MAC702 View Post
          I only have a little experience with this. Each time I had to replace the tombstones on the feed side of the LED tube with different non-shunted tombstones. The first time I did not expect this and switched on to a bolted fault. I also did this first replacement in my own shop...
          The newer tubes that I use can be wired either on one end or both. ie; same end- one pin hot the other neutral
          different ends - hot on one end, neutral on the other. Shunted sockets won't matter on the different end wiring.
          If you aim at nothing, you will hit it every time!

          Comment


            #6
            Yes, I meant to include there are both types available and make sure you are ready for it.

            Comment


              #7
              OP said 8' fixtures, which likely means single pin tombstones.
              If Billy Idol is on your playlist go reevaluate your life.

              Comment


                #8
                I did miss that. Definitely bypass those ballasts!

                Comment


                  #9
                  Originally posted by ActionDave View Post
                  OP said 8' fixtures, which likely means single pin tombstones.
                  Now why do you have to mess everything up by bringing up the facts?
                  If you aim at nothing, you will hit it every time!

                  Comment


                    #10
                    Are you the one specifying the lamp, what is in there now?
                    T-shirt means color reproduction, 4200k. http://www.americangreenlights.com/c...ing-index.html Start reading, also search this site, Mike Holt, .
                    8' fixture, what style lamp, single pin, high out put?
                    Last edited by sameguy; 05-03-19, 09:57 AM.

                    Comment


                      #11
                      Originally posted by ActionDave View Post
                      OP said 8' fixtures, which likely means single pin tombstones.
                      There are kits out there that can convert those 8' fixtures to "tandem" 4 footers. 4 foot lamps are easier to come by and more variety of choices than 8 foot AFAIK, even if still using fluorescent lamps.
                      I live for today, I'm just a day behind.

                      Comment


                        #12
                        Originally posted by Little Bill View Post
                        Now why do you have to mess everything up by bringing up the facts?
                        he does that periodically.
                        ~New signature under construction.~
                        ~~~~Please excuse the mess.~~~~

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                          #13
                          Originally posted by sameguy View Post
                          Are you the one specifying the lamp, what is in there now?
                          T-shirt means color reproduction, 4200k. http://www.americangreenlights.com/c...ing-index.html Start reading, also search this site, Mike Holt, .
                          8' fixture, what style lamp, single pin, high out put?
                          4200K is too yellow. 4800-5000K is better.

                          Comment


                            #14
                            This forum is awesome. Thanks so much for all the responses.

                            These are all 8' single-pin tombstones. Actually about 80 fixtures total. Currently 110 watt T12 CW bulbs, with about 50% of them not working at all! The workers are going to be soo happy. I'm planning on bringing extra tombstones assuming some of the existing are going to have issues. I will be renting a scissor lift.

                            Comment


                              #15
                              Originally posted by dinotone View Post
                              This forum is awesome. Thanks so much for all the responses.

                              These are all 8' single-pin tombstones. Actually about 80 fixtures total. Currently 110 watt T12 CW bulbs, with about 50% of them not working at all! The workers are going to be soo happy. I'm planning on bringing extra tombstones assuming some of the existing are going to have issues. I will be renting a scissor lift.
                              Do you have 8 foot retrofit lamps? Even in past when retrofitting with T8 fluorescents, many still used the kit to convert them to 4' tandem fixtures as the 4 foot lamps were the better way to go for the most part. I think they are less cost just because the volume of 4 footers out there compared to 8 footers, and you only need to stock one replacement type lamp instead of two types.
                              I live for today, I'm just a day behind.

                              Comment

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