I had nothing but GREAT SUCCESS with my Moultrie D55 flash, its only 100$ but man does it do the job and the battery life is AWESOME, compaird to the more expesive I40 which is in the 200$ range, man does that one just stink in my opion, had two of them both SUCKED, moultrie is supposed to be sending me an I60 to replace it, that is a 300$ cam that is probably the same parts as the I40,so if your like me and can't AFFORD the high dollor cams, do some research you can find some AWESOME CAMS for around 100$