Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is it true that after a long period of time this bulb gets very hot? And also will lightly fog up the maglite's plastic?
Document: This LED upgrade allowed me to project a brighter beam of light for a longer period of time than the incandescent bulb. Now I don't have a dimly lit torch/club after a few uses. If I had the 3D Maglite LED prior to the 6D, I would have just used the 3D. Ultimately, the Maglite 3D LED (131 lumens) is the better setup, but now I have made my older 6D more useful.
Purchased this LED replacement bulb for my 4D cell maglite. Very easy install and was super bright. However, it only worked for a few hours. It took me a couple of months to put a few hours of use through it. Unfortunately for me by the time it burned out my return window with Amazon had closed. If you buy one make sure you use it a lot before the return period expires. I might try to purchase another one and hope it doesn't burn out. These bulbs should last forever.
I would certainly say this is as bright if not brighter than the original krypton. It is a different color spectrum, more in the blue, or pure white. Incandescent has a slight yellow hue. You can focus this, the same as the original bulb. I highly recommend this product. I have not had it long enough to kill any cells to tell you about run time, but LEDs are historically WAY more efficient and durable, so this will take a harder hit and still shine your way home.
Pros: Super bright!LED so the battery lasts much longerCon: The &#34;bulb&#34; wouldn't fit with the holding collar on. I had to glue it in lightly, still works great though.Overall, I would recommend this product. Even though its glued in my flashlight it's so bright I don't care. It will long out last the batteries.
really easy to install. really bright. seems good for the money. will see how long it lasts-hopefully a long time.
Very bright last longer and the batteries last much longer. Wanted one of these bulbs for a long time but couldn't find one for the 6 cell light. Worked perfect for me.
Maglight makes tough flashlights that last a long time, but the light output kinda sucks compared to what is available today. I bought one of these for each of my three maglights that have been gathering dust for a few years now and it's such a huge difference. After the upgrade I put one of them in each of my trucks, they're still big so I don't carry them on me, but for the truck they are very useful now.
This blanket statement in the (sparse) description & title is very misleading:  "Fits MagLite 4-6 cell flashlights". Not true.Older C/D cell mag-lites use a traditional incandescent bulb that looks very similar to a traditional screw-in light bulb.
Improve the output of the light and improve the life of the battery. What's not to love? And no bulb to break, Haven't noticed any major heat buildup, which is the big problem with LED replacements. And it's a pretty true white color, to my eyes at least. Plan to upgrade all of my mags to these guys. Great price for the results, and great customer service.
It's true that this does not fit newer style Mags . But not to worry, get the light bulb retainer nut for the older style and voila .If your adventurous and have some machining skills, you can increase the hole size of the newer style nut allowing this bulb to fit without issue . (I did it with a 7/16 drill)Even with that, I recommend this product for larger battery count Mag-Lites .
Answer: yes