Lutron Diva LED+ Dimmer for Dimmable LED, Halogen and …

For example, if you set the concealed switch to the brightest setting, I would estimate the dimming range is adjustable from about 70% to 90% of the brightness range of the light bulbs. If you want to set the light level lower, you would need to remove the wall cover plate, adjust the range downward, and replace the cover plate.

https://www.amazon.com/Lutron-Incandescent-Wallplate-Single-Pole-DVWCL-153PH-WH/dp/B004C2WTLU