From the manufacturer:
I know what you’re thinking: 10 to 48? I thought Light strings went 10 to 46? Yeah well, let me explain…
We do a lot of experimenting around here with different string gauges — I know, we’re nerds — and we love to run the tension math to see how certain sets perform. Through all that, we’ve discovered two inherent problems in a typical 10-46 “Light” set: there are big dips in tension on both the 2nd and 6th strings (.013 and .046, respectively). So, with our Balanced 10s, we fix all that by using a .0135 and a .048 instead.
The result is a set of strings that plays evenly across the entire fretboard and intonates better. So if you’ve been a classic 10s player, you have to give these a try. Seriously.