MAGLITE LED UPGRADE Conversion Bulb for 3 to 6 D/C cell Flashlights 4.5w | eBay
Lumencraft LED Conversion Kit Compatible/Replacement for Maglite Flashlight - 3500 Lumen for 6 D Cell - High Power Upgrade with Cree LEDs - - Amazon.com
Maglite LED Conversion and Upgrade kits: The best and cheapest dropins and replacements..