LED Upgrade Combo II fits AA Mini Maglite - 30 Lumens
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, Dimmable
Upgraded my 4D bi-pin Maglite to an LED and really happy with the results. Thank you to those of you who gave me advice. : r/flashlight
Maglite LED Upgrade, Ultra Bright High Power 10 Watt Luminus SST-40-W LED Conversion
Terralux Extreme LED Upgrade for Maglite 4D - YouTube
MAGLITE LED UPGRADE Conversion 4.5W Bulb 3D 4D 6D Torch Flashlight UpLED 5060451510010 | eBay