The Fenix ALG-03 Headlamp Helmet Mount allows you to quickly attach and detach the HP30RV2.0/HM70R/HM65RT/HM65R/HM61R/HM60R/HL60R headlamps to any outdoor or work helmet—making sure the headlamp stays securely fixed to your helmet. Now you can adjust the light angle without worrying about the headlamp slipping or having to readjust positioning on your helmet. Attach the mount easily with the included adhesive tape, then slide your headlamp into the durable nylon mount.