Amazon.com: Lumencraft LED Conversion Kit Compatible/Replacement for Maglite Flashlight - 800 Lumen - fits 3 4 5 6 D Cell Maglight - High Power SST40 - 3 Mode Low 45, Mid 315, High 800 Lumens. (800 Lumen Bulb) : Tools & Home Improvement
U7 Magcharger LED upgrade - Ledmag English
Lumencraft LED Conversion Kit Compatible/Replacement for Maglite Flashlights, 325 Lumen, High Power SST40 + Scratch Resistant Glass Lens. Fits 2-6 D and C Cell Focusable (325 Lumen + Glass Lens) - Amazon.com
ST-50 Magcharger LED upgrade - Ledmag English
Converting a Maglite to 26650 li-ion cells. Recessing tail spring. - YouTube