for anyone considering this course, i'd say 'go for it.' as they are made to order we can tailor them to your exact requirements. even in joy bulbs, there is no option in the market for 7w, 8w, or 9w, which we have included in our portfolio. there are few better ways to spend free time than by doing arts and crafts. the wall runs from 5m down to 16m and a second wall runs a little deeper. trying to figure everything out on your own. 