Congrats! I've got an X570 I bought used last year with three implements (cart, aerator and dethacher) but also own an X350 I bought new about 5 years ago.
Once of the headlight bulbs went out on the X350 so I went online for a replacement. I upgraded both bulbs with these replacements below. These things give off incredible light compared to the OEM bulbs. Not sure if the new(er) models have better lighting - but periodically I have the need to operate the mower as it approaches dusk and with these LED bulbs it makes a world of difference.