4D MAG-LITE DIY LED and LI-ion Batteries Retrofit - YouTube
LED Upgrade Bulb for Maglite 3D, 4D, 5D, 6D Cell with 3 Selectable Mode/LED Compatible Kit for Maglite Torch - China LED Upgrade Bulb for Maglite 3D 4D 5D 6D Cell and Dimmable LED Compatible Kit for Maglite Flashlig