Never lose an arrow again! Replace your original internal mount nocks with Lumenoks. Lights up automatically when seated against a carbon or aluminum arrow shaft. Stays lit for up to 40 hours. No magnets, no glue, no switches or moving parts. Light can be disengaged by backing nock out of arrow shaft.
The Lumenok lighted arrow nock is activated upon the shot to allow archers to follow the path of their arrow.  This model Lumenok provides up to 40 hours of illumination and can be seen from great distances.  No magnets required for activation.  This Lumenok is made using an R nock from Black Eagle.