I bought the small and tried to make a 15 piece lamp shade but quickly realized that it wouldn't be deep enough to accommodate light fixture and a bulb. I made the 30 piece round instead and put in a 9w led bulb but couldn't put the lamp in the way it's described on Youtube because of the smallness and thinness of the pieces. Compared to the niki nu XL the material making up the pieces feels a little thinner, but the cord and switch in this one is better than the niki nu one. The niki nu uses a roll switch which is close to the lamp socket and the cord is 12 feet long. This one is 15 feet long and has a rocker switch about 5 feet from the end.