3-6D Cell Maglite Drop-In LED Upgrade Conversion (No Reflector)




This is a Drop-In LED Upgrade Conversion for the incandescent Maglite® 3-6D Size Flashlight.  This dropin produces a real 425 (measured out the front) lumens in a 3-6 D Size light with alkaline batteries.

Reflector NOT Included

In order to use this dropin, YOU MUST CUT off the rear end of YOUR reflector within 1/8th inch of the base of the cone.  Just make sure not to cut into the cone itself when making the cut.

Precut Maglite Reflectors are available for purchase on the previous webpage. 

The Drop-In module is constructed of CNC machined structural aircraft aluminum and has a regulated driver.  Full heatsinking of the driver and LED insure that the module can, and will, run at maximum output for extended periods. The LED is a Cool White Luminus Devices SST-20.  It will easily illuminate objects at a distance of 1000+ feet and will light a 2 inch red reflector at a distance of more than 1/4 mile.  If you shine someone with this at night, within a 100 ft radius, they should see spots for a good 8-10 seconds.

The module retains the focusing ability of the flashlight. It operates on 3-6easily available D size alkaline batteries with a full output runtime of 6+ hours in a 3 D light.  Each additional cell will add 2-3 more hours of full output runtime.  It will continue to operate at reduced output for several more hours. The light is great for distance and spotting.

This Maglite upgrade (Maglite Dropin) was designed for rugged service from the ground up.  It is fully potted to stand up to rough service and recoil.  This item is covered by our Lifetime Warranty.

Patented in USA


The light must have a "D" as the first character of the Serial Number for a proper fit.  If your light is an older Maglite without a "D" you will need to purchase a D Size Adapter Sleeve, available on the previous webpage.

This dropin will Not Work in Maglite LED Flashlights without a user removable light bulb.  Please check to see if your  flashlight has a user removable light bulb before purchase.

In order to use this dropin YOU MUST CUT the rear end of YOUR stock reflector within 1/8th inch of the base of the cone.  Just make sure not to cut into the cone itself when making the cut. 

PreCut Maglite Reflectors are available FOR PURCHASE on the previous page.  

WARNING: This light is capable of causing eye damage at close range. Please use the light responsibly!!!

WARNING:  Do not run this drop-in above its rated spec of 9 volts, doing so will destroy the power circuitry.

If you have any questions please feel free to contact me at gene@malkoffdevices.com


Mag Instrument, Inc., which manufactures and sells Maglite® flashlights is not associated in any way form or fashion to Malkoff Devices, Inc.. Mag Instrument, Inc. does not manufacture, sponsor, warrant, or endorse any Malkoff Devices, Inc.'s product advertised on this website. The use of the Maglite® trademark, a registered trademark of Mag Instrument, Inc., is strictly for the purpose of identifying the host flashlight for the Malkoff Devices, Inc.'s products advertised on this website. All other trademarks, copyrights, and graphics or text not owned by Malkoff Devices, Inc. or any of its related companies that appear on this site are the property of their respective owners, who may or may not be affiliated with, connected to, or sponsored by Malkoff Devices, Inc..