Luna Optics Pressure Switch Surefire Adapter LN-EIR/LN-ELIR Black. Connect Surefire Pressure Remote Control Switches to your LN-EIR and LN-ELIR extended range infrared Illuminators using the LN-PSW-SA Luna Optics Adapter. This adapter is made from lightweight and durable alloy with a black anodized finish and has threaded ends to ensure proper mating of your devices. Just take off the battery cap from your Luna Optics illuminator screw on this adapter to the battery compartment thread and attach your Surefire pressure switch. You may need to use 1-2 copper washers (custom made to fit inside the Surefire Cap - included with your adapter) for better connection. Specifications for Luna Optics Pressure Switch Surefire Adapter: Manufacturer: Luna Optics Color: Black Finish: Matte Black Anodized Fabric/Material: Aluminum Weight: 1 oz Features of Luna Optics Pressure Switch Surefire Adapter For LN-EIR & LN-ELIR Luna Optics IR Illuminators Adapts Surefire Pressure Remote Control Switches Lightweight and Durable Alloy Matte Black Anodized Finish Package Contents: Luna Optics Pressure Switch Surefire Adapter Adapter 2 Copper Washers Luna Optics LN-PSW-SA: Pressure Switch Surefire Adapter LN-EIR/LN-ELIR Black