This DENALI DataDim Dual-Intensity Controller enables the DENALI lights to switch between half and full intensity with your vehicles original high beam switch. All DENALI 2.0 Light pods are equipped with a dedicated 3rd-wire dimming circuit so an external signal can reliably control the intensity of the LED chip at the source

Whats in the box:

• (1) DataDim Dual-Intensity ControllerDNL.WHS.11000
• (1) Dual-Intensity Trigger Wire

Fitment Note:Vehicles equipped with LED headlights may utilize a ground switched circuit, which will not trigger the DataDims function with the stock high beam controls. Vehicles with ground switched headlights will require theDENALI 2.0 DrySeal Hi-Low-Off Waterproof Switchin addition to the DataDim to toggle between high beam and low beam.