In case you haven't figured it out, I'm new here. You guys seem to want to help though, and that's very cool. I don't know if this will help anybody but I just replaced my veg lights with 4' led tubes. I was able to remove the heavy, noisy, heat producing ballasts from some $12.00 Home Depot Shop lights. Mounted 7 fixtures on 2 4' pieces of PVC with some brackets that I drilled holes in the fixtures to mount to make a panel larger than the t5 panels sold in the hydro stores and for about half the cost. 27 watts per tube at 6500k. Very bright! I'll make a second one and I have some shop lights that have a wider spread between bulbs and will throw a few led tubes in them for cloning. I have to think that if you own a t5 fixture, you should be able to open it up. remove the ballasts, the wiring diagram comes with the bulbs and bam! If you're not adventurous, you can find led tubes that will work with or without the ballasts but obviously it's nice to get rid of the extra heat, noise and power consumption not to mention the high failure rates of cheaper shop lights.
