Staining lighter is in theory at least, almost impossible. The ambient light goes through the coatings and is reflected back again through those same coatings. The amount of light you see, and it's apparent colour, has been reduced (dramatically!) from what went in.
The "lighter" colour will only be what's reflected back from the particles on the way in. You can't really stop the darker tones from reflecting back as well, hence what Stick said about bleaching the wood first
If you have a MOHAWK FINISHES outlet close to you, i'd suggest you go and have a chat with them. They have a solution for just about any situation. Take a sample or a picture of the existing with you!
A lot of their products need to be sprayed, not brushed... https://woodrepairproducts.com/wp-co.../PFS_Guide.pdf https://www.mohawk-finishing.com/res...sk-the-expert/ https://www.mohawk-finishing.com/whe...a-distributor/