Denali 2.0 DataDim Dual-Intensity Controller The DataDim Dual Intensity Controller allows the Denali Driving Lights to switch between half and full intensity with your motorcycles orignal high beam switch. Plug this controller into the end of the harness included with Denali light kits to enable dual intensity functionality. Features Enables high beam / low beam functionality with Denali 2.0 series LED lamps Partial plug-and-play connectivity (requires tapping into a high beam circuit with supplied Posi-Tap) Note: Only compatible with Denali 2.0 series LED lamps.