Can I forgo the endcap switch and continue using the focus beam to turn off and on.

From my experience with this product I would not recommend to ever turn the head of the flashlight to focus light beam after installing upgrade! Reason is overtime turning the Mini Mag-Lite beam focus part tends to twist the LED connectors and ultimately damages it to where it will either flicker or not work at all. I have taken this item back to Home Depot 2 times to only have the same results again. Then I wrote to Nite-Ize about the problems and they sent out several replacements and several smart switches for my troubles. Then another problem arose from the smart switch! There is a red LED light that flashes on the smart switch to show that it's in use. It's also there to see if you drop the flashlight in the dark to locate it. Because it is always on, the switch will drain the batteries completely dead. So to fix the problem, you need to turn the Mini Mag-Lite off by twisting the neck part. Now going back to my original problem, turning the neck is what will kill your LED upgrade, so installing the smart switch will cause you to constantly replace batteries or turn it off at the neck and kill the LED upgrade. Their LED upgrade for the D-cell Mag-Lite's completely different story, you replace the lightbulb with an exact lightbulb style LED. There isn't any upgrade parts to replace to allow for this upgrade, unlike the light reflector that comes with the Mini Mag-Lite upgrade kit. You just unscrew the part that holds the bulb in place on the D-cell Mag-Lite, replace the bulb with the LED upgrade bulb and screw the part that holds it in place back, that's it! Anyway, it's a great way to make a Mag-Lite even better, by using this upgrade! Just keep in mind that it is extremely fragile and can be broken easily if you use it in a normal fashion, which is crazy!

package quanity lists 2 options, my question is what's the difference between "in stock " and "new" other than price?

There is really no difference, other than price, except when you click new you will have a choice between other sellers, which offer different pricing.

Does it work with this model?http://www.amazon.com/gp/product/B005UUSAAM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1

Worked well for two mini Maglites I had. The newer Nite Ize uses a better pushbutton switch; the older one was too easy to trigger. Either way, the pushbutton is a nice improvement over twist-on, twist-off. The light is significantly brighter and batteries last a lot longer. If you're buying a new Mag, get the LED model. If you have one or more older Mag minis and they still work, then this is a reasonable upgrade for $9.

If I retrofit the clicker on/off button will the flashlight still fit through a Maglite sheath?

Yes this will fit the retro. It works so much better then turning the head. With this clicker and the LED build, it is so much better. I did not want to give up my purple Mag flashlight. It is worth the buy

ASIN	B000MD9UJC
Battery Cell Composition	Alkaline
Battery Description	AA
Best Sellers Rank	#139,929 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,597 in Handheld Flashlights
Brand	Nite Ize
Brand Name	Nite Ize
Brightness	30 Lumen
Bulb Base	E26
Color	No Color
Customer Reviews	4.1 4.1 out of 5 stars (3,778)
Date First Available	January 2, 2007
Finish Type	White
Global Trade Identification Number	00094664014978
Included Components	Nite Ize LUC2-07 Single Bulb LED Combo Upgrade Kit
Item Dimensions LxWxH	1 x 1 x 1 inches
Item Package Dimensions L x W x H	5.67 x 3.11 x 0.91 inches
Light Output Maximum	30 Lumens
Light Source Type	LED
Manufacturer	Nite Ize
Material	Plastic
Model Name	Nite Ize LUC2-07 Single Bulb LED Combo Upgrade Kit
Model Year	2015
Mounting Type	Snap In Mount
Number of Batteries	2 AA batteries required.
Number of Items	1
Package Weight	0.02 Kilograms
Part Number	9001219-SSI
Power Source	Battery Powered
Product Dimensions	6"D x 3"W x 0.88"H
Recommended Uses For Product	upgrading and improving the performance of AA Mini Maglite flashlights
Size	AA
Special Feature	Lightweight
Specification Met	No
Sport Type	Cycling
Suggested Users	unisex-adult
UPC	885623046099 094664007383 094664014978 757183207152 721019282125
Voltage	3 Volts
Warranty Description	Warranty.
Warranty Type	Manufacturer
Water Resistance Level	Water Resistant
White Brightness	30 Lumens

LED Flashlight Upgrade, Fits AA Mini Maglite, Upgrades Bulb To 30 Lumen LED

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Description

Specifications

Common Questions