Amazon.com: American Technology Components 12 Volt DC Dimmer Switch for LED, Halogen, Incandescent - RV, Auto, Truck, Marine, and Strip Lighting (Large Slider, White) : Automotive
Automatic Lamp Dimmer Circuit using Triac - Gadgetronicx
Light the Way with a Flexible, High-Dimming-Ratio Auto LED Driver | Electronic Design
Amazon.com: OPPKEPT 12V RV Dimmer Switch, Upgrade 12/24 Volt DC PWM Dimmer for LED Interior Lights, Halogen, Incandescent, Used for RV, Auto, Camper, Truck, Marine, Boat and Strip Lighting (High Side, Silver) :
Automatic Light Dimmer
Car Smart Led Daytime Running Light Dimmer Automatic On Off Controller Wire Light Inverter Supply Adapter Flexible Abs - Wire - AliExpress