Refresh level: This refers to how often times the display can refresh the image for every second, calculated in hertz (or Hz). An increased refresh fee makes the motion in online games search smoother because you're looking at additional information. For productivity, 60 Hz is a lot more than ample, https://opaldaily.com/backlit-trade-show-displays-elevating-your-brand-with-light-boxes-backlit-booths-and-illuminated-displays/