The product arrived with one day earlier than the Amazon estimation, I hope that this will remain the case for the next order if there is. Regarding the product itself I did not test in real condition of use for night video. However malgrès the adapter rings, I was surprised by its small taile I expected a larger diameter which forces me to my auguementer zoom lens (15-85 guns) not to have ring light in the field, bémole little extra if the power of the continuous lighting is not to maximize the control transmits a sharp unpleasant sound that the microphone of the canon enrengistre. the positives is its lightness and power attractive at first sight.