Instruct: Classify Amazon reviews into positive or negative sentiment
Query: HOW TO MAKE THE SWITCH FIT

As others have said, this unit is a tight fit, but I used a different means of slipping it in. When my lamp column was made, the switch hole was cut with a stamp/shear machine which leaves a raised edge on the inside of the tube. I just used a rounded file to file down that inside edge, and the Westek unit slid right in place. Because of the placement of the switch hole on my lamp, there was not enough room to mount the switch top side up, so I just mounted it upside down. Otherwise, the switch works just fine.