Lumenok Lighted Nock, Red, 2219 Aluminum, Flat, 3 Pk.

There are now several manufacturers offering luminous nocks as end nocks (Lumenoks) on arrows, especially for crossbow arrows.

The simplest, safest and most robust version is made by Lumenok. The small built-in 3V lithium batteries operate the bright red LED for up to 40 hours and appear extraordinarily bright even during the day thanks to their special design.

Installation is very simple. The nock is simply inserted into the rear shaft end of the arrow. Two contacts 180 degrees apart on the outer edge of the nock touch the shaft end of the aluminum arrow when it is shot, allowing the current to flow through the LED.

After shooting, the nock is pushed back slightly with thumb and forefinger, the contact is interrupted and the LED is off. The Lumenoks can be used as half-moon nocks and as flat nocks for 2219 crossbow aluminum shafts (arrows).