The Fenix ALG-03 Headlamp Helmet Mount allows you to quickly attach and detach the HL55, HL60R, HM61R or HM65R headlamp 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.