I would look for an LED compatible dimmer. If the switch is "part of the light" then maybe you can replace the element with a "softer" LED. I'm just thinking out loud as I am NOT an expert on LED lighting.
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.