Just thought I'd add this option for any of you that are looking for switch labels. There is an enterprising young lady named Amanda on eBay that can make circular labels to your specifications. They are inexpensive and easy to install.
Here's her link on eBay: amandbol-7 on eBay
Take a look at them installed on my SPF40: https://www.flickr.com/gp/141675158@N03/3ELpE0
If you decide to go this route, you need to specify 0.575 inch hole with a 1.125 inch OD. Her standard product is too small (don't ask how I know). The remainder of the instructions for specifying text, etc., are on eBay.
Here's her link on eBay: amandbol-7 on eBay
Take a look at them installed on my SPF40: https://www.flickr.com/gp/141675158@N03/3ELpE0
If you decide to go this route, you need to specify 0.575 inch hole with a 1.125 inch OD. Her standard product is too small (don't ask how I know). The remainder of the instructions for specifying text, etc., are on eBay.