I used Archer's Flame for 2 years. The ONLY reason I am not using them now is that I switched to A/C/C's and I refuse to change out the nock.

Archer's Flame is absolutely the cat's butt!! I really, really like them. They are incredibly bright, much more durable than others and simple to turn off.

If I had to pin down a negative it would be installation. They are not quite as simple as just pushing them in. There is a small dowell pin that needs to be glued in as well. Look, it's just not difficult in the least. Watch the video he sends with it and do it. Yes, it does add just a little bit of weight to the tail of the arrow, but I noticed NO ill effects from that at all.

I highly recommend them.