Delighted with my purchase, I start and I found it ultra-convenient and easy to use. When I read the comments I hesitate but I think many do not read the instructions. There are two modes, mode on and infinite mode so it is normal that there is fault on press the red button to activate the timer with lighting;) I think anyone could have guessed so the comments that button has two positions but only works over a short err ... I also read a lot of advice to start with a board that say to thumb apart, and although this unit allows for the entire hand without any worry, very spacious and really convenient to clean. I recommend this camera;) and pushes the cuticle and offered little cleaner pure cottons are really great =) thank you