I have tried the Lumenok, Tracer, and the Firenock. The Lumenok like the Tracer are disposable once the battery runs out. The Tracer 's had the shortest battery life of all three. The wires that activate the Lumenok created dimples in the end of my GT Laser II's when shot and when I refletched I had to clean up the back of the arrow with the G5 ASD.
The Firenock is definitely the Cadillac of the three. It is more expensive but it is highly customizable and it is not a disposable unit when the battery goes dead. Assembly is a bit tricky and it is easy to short out the battery if you are not careful. Read the directions. Battery life on the Firenock is one season (You can buy an extended life battery from Firenock) but there is no way to test them without shooting them so if you can't shoot them at the house that might be an issue.
The lighted nocks really make it clear where your shot went, especially in low light.
Vegetarian: vejiˈte(ə)rēən/noun: old Indian word for lousy hunter.
Excalibur Exocet, GT Laser II, 2" Bhoning Blazers 125g NAP Spitfire