Don't buy the Moultrie D 40s...bought one and flash went out within three months giving me daytime photos only...exchanged and same thing within 2 weeks...and then again...Bought the M40 last January and it is awesome so far "knock on wood". I just checked it yesterday morning and had 769 pictures for the previous 4 fours...and I'm still on my second set of batteries with 55% left...