sorry, I couldn't resist.
Anyway, there are several led options available to replace the stock cluster bulbs, like these,
https://www.amazon.com/cciyu-Climat...------------1&vehicleName=2009+Dodge+Ram+2500
I personally find the stock dash lights in my 2012 (which I believe is the same as the '09 dash) to be more than bright enough, and have to turn them down. The only time they appear dim is when it's raining during the day and I have the lights on. And even then, it's just the radio display that is dim, and that takes more than a bulb change to remedy.