Running a monitor above it's default resolution?

Ortiz94x

Honorable
Aug 19, 2013
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10,690
I watched a YouTube video of how to basically clock your monitor at a hgher Hz and resolution than it allows by using the Nvidia control panel and I successfully got my TV to 2560x1440 with 70Hz when it's highest is 1920x1080 at 60Hz.

Will this reduce it's life span or mess up my LED lights?