I have one on my dead nutz and I like it, but when it gets really low light, if you turn it on, when you draw back to shoot, you can't see past your sights... It's too bright... But this will be true on any light... I just put a peice of felt (or whatever you call that stuff you put on your riser to quiet it when the arrow hits it) over it with just a very small slit in it... Works great!!! but if you put felt over it, wait till dusk and test how big to make the hole... I just put a slit in it, put it on, them at dusk i go in the woods and stretch it open or push it shut till it's just right...