The significant difference between the two courses is that a 4-day course is much shorter than the 4/7 weeks courses. However, it is more intense as you will only come in for the units where the tutor will do a demo, and you will practice in class.
You will need to have a kit so you can practice at home with family and friends. All theory you will need to complete in your own time at home. We recommend anything up to 30 hours a week