i personally dont like them...my friend got one and i liked it...i got one and the brown piece that goes into the arrow broke off when i tried to pull it out to turn the light off...pulled it in half essentailly....took it back to wally world and tried another one...same thing...if i could turn it off without breaking it i would love it....being a new bow hunter, being able to see where my arrow went is a HUGE plus....