The OP was about Sam's Club LED fixtures.
Yes. My mistake. I meant to refer to the posting that you quoted and responded to from another member, that was talking about T8's.
I was not trying to split hairs, just make a point, about upgrade LED tubes, that regardless of what the ballast watt usage is, it will be ZERO, once it's removed from the fixture, because it will be no longer needed.
Here's the thing....
all of these lamps have different wattages. Typical ballast bypass tubes are in the 18 watt range, plus or minus. So, without any ballast at all, you consume 18 watts.
There are LED tubes that run on the ballast that use 12 watts. Plus 2 watts for the ballast losses and you're at 14 watts total per tube.
So, even with the ballast, this tube uses less energy than the tube without the ballast. Now, this is just one example. There are many others. So, to say that removing the ballast is necessary and will definitely save more energy is not quite accurate.
To your point, there are some dual source tubes out there that can be wired either way...with or without ballast. But they are not all that common, usually cost a little more because they have a driver (ballast) inside of them, and usually use a few more watts.
CD