There are a few things you need to consider when choosing the best digital LED controller of heat press machine. The first is the type of machine you have. If you have a manual machine, then you will need a different controller than if you have an automatic machine. The second is the size of your project. If you are working on a small project, then you will need a smaller controller. The third is the power output of the machine. This is important because you need to make sure that the controller can handle the power output of your machine.