While I recommend lighted nock usage for all crossbow goers, these nocks are not a must-have requirement. The benefit of a lighted nock is being able to track bolt flight, identify any nock travel issues, and find your bolt after taking a shot in the hunting woods. Lighted nocks also quicken the sight-in process. Twenty-two inch and shorter bolts are hard to see in a target, even with bright-colored vanes. When you’re shooting a lighted nock, you always know the exact placement of your bolt, and you can make adjustments without making numerous back-and-forth trips to and from the target.