Check the listing for details. LED Dimmer Switch 12V on-off Light RV Motor Home Camper Trailer Black 12 V. Condition: New. Listed at 19.99 USD. Leisure LED Contemporary On-Off Toggle with Large High Side Dimmer Switch, 12-Volt, for RV, Trailer, Camper (Black) Free Fast Shipping Ships Same or Next Business Day (1) Black RV 12V Toggle Switch with Large High Side Dimmer Slider light switch -Cover snaps over switch base plate for a clean look and easy installation and service - Includes 1 switch base and cover with on-off switch's (as shown) -Overall Size: 3.02” (L) X 2.83” (W) x 1.5” (H)-Minimum hole cut out size 2.23” (L) X 1.7” (W) X 0.8” (H). Operating voltage 9V DC - 16V DC, 10 AMP Max. Dims up to 60 watts (4.2 AMPS). Three wires hook up. Commonly used for lights, pumps, fans, vents and many other uses in RVs, Buses, Horse Trailer Conversions, Haulers, Travel Trailers, Boats and more.