Replacing 160 fluorescent tubes T8/T10/T12, 4FT, LED Light Tube, Dual-End Powered, Easy Ballast I've been looking to switch my fluorescent tubes out with led for about a year but held of because of the cost and general PITA of doing the switch. Anyway I noticed the cost of they LED Light Tubes T8 / T10 / T12,4FT HTlights were reasonable so I went ahead and bought 4 of the 5000k clear tubes and 4 of the 4000k frosted tubes to try out in my house. It was really easy to bypass the ballast on both the single ballast double ballast fixtures I have. On the single ballast fixtures one side had blue and red wires and the other side had yellow wires. I connected the black wire to the red/blue wires and the white wire to the yellow. Followed the same pattern on the dual ballast fixtures... black to red/blue and white to yellow. My understanding is you can go either way but it worked for me on the first fixture so why change? Now the important part, the light was fantastic, IM...