Mag Instrument: Difference between revisions

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Revision as of 21:44, 25 March 2013

3,055 bytes removed ,  25 March 2013
→‎Thermal management
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The 2xAA Mini Maglite LED,
The 2xAA Mini Maglite LED,
<ref name="2AA">
<ref name="2AA">
<!--NLee the Engineer (15 September 2010). [http://www.amazon.com/review/R2LJT6DHWDCB6F "Contains outdated 1st-gen Maglite LED flashlights"]. ''Customer Reviews: Maglite 3D / 2AA LED Flashlight 2 Piece''. Amazon.com, Inc. Retrieved 23 January 2013. "The 2nd-gen models solved the thermal problem. Previous models over-heat easily, and their light dim down after just a few minute of operation."-->
{{cite web
{{cite web
|title=Contains outdated 1st-gen Maglite LED flashlights
|title=Contains outdated 1st-gen Maglite LED flashlights
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* To cool off the LED, each of these flashlights included imperfect heat-dissipation technology:
* To cool off the LED, each of these flashlights included imperfect heat-dissipation technology:
<ref><!--Wang, Robin (20 January 2012). [http://www.led-resource.com/2012/01/maglite-ml100-led-flashlight-review/ "Maglite ML100 LED Flashlight Review"]. LED-Resource. Retrieved 24 January 2013. "Previous generations of Maglite’s MAG-LED technology, including the original LED drop-in replacements and even the current LED D-cell lights, had problems with heat dissipation and irregular beam patterns because they were originally designed for incandescent bulbs."-->
<ref>
{{cite web
{{cite web
|title=Maglite ML100 LED Flashlight Review
|title=Maglite ML100 LED Flashlight Review
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|date=20 January 2012
|date=20 January 2012
|quote=Previous generations of Maglite’s MAG-LED technology, including the original LED drop-in replacements and even the current LED D-cell lights, had problems with heat dissipation and irregular beam patterns because they were originally designed for incandescent bulbs.}}
|quote=Previous generations of Maglite’s MAG-LED technology, including the original LED drop-in replacements and even the current LED D-cell lights, had problems with heat dissipation and irregular beam patterns because they were originally designed for incandescent bulbs.}}
</ref>
</ref> a poorly-designed [http://en.wikipedia.org/wiki/Thermal_management_of_electronic_devices_and_systems#Heat_sinks heat sink,]
a poorly-designed [http://en.wikipedia.org/wiki/Thermal_management_of_electronic_devices_and_systems#Heat_sinks heat sink,]
<ref name="2C_upgrade">
<ref name="2C_upgrade"><!--NewBie (16 July 2006). [http://www.candlepowerforums.com/vb/showthread.php?119665-MagLite-2C-2D-4D-3W-LED-drop-in-Technical-Review "MagLite 2C LED drop-in Technical Review"]. ''CandlePowerForums LED flashlight forum''. Post 1. Retrieved 23 January 2013. "We are looking at nearly a 60% drop in output, due to the LED getting hot, from a severe lack of good heatsinking."-->
{{cite web
{{cite web
|title=MagLite 2C LED drop-in Technical Review
|title=MagLite 2C LED drop-in Technical Review
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|quote=We are looking at nearly a 60% drop in output, due to the LED getting hot, from a severe lack of good heatsinking}}.</ref>
|quote=We are looking at nearly a 60% drop in output, due to the LED getting hot, from a severe lack of good heatsinking}}.</ref>
made of thin [http://en.wikipedia.org/wiki/Stamping_(metalworking) stamped] metal.
made of thin [http://en.wikipedia.org/wiki/Stamping_(metalworking) stamped] metal.
<ref><!--NewBie (16 July 2006). [http://www.candlepowerforums.com/vb/showthread.php?119665-MagLite-2C-2D-4D-3W-LED-drop-in-Technical-Review MagLite 2C LED drop-in Technical Review]. ''CandlePowerForums LED flashlight forum''. Post 1. Retrieved 23 January 2013. "Here we go, one of those for your eyes only, which reveals the secrets and the shortcomings, and explains a great many things [...]"-->
<ref>
{{cite web
{{cite web
|title=MagLite 2C LED drop-in Technical Review
|title=MagLite 2C LED drop-in Technical Review
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* Also, as each flashlight's LED heated up, the flashlight provided less power to the LED, which caused it to dim and to produce less heat. If the flashlight was moved into a cooler environment, it instantly brightened again.
* Also, as each flashlight's LED heated up, the flashlight provided less power to the LED, which caused it to dim and to produce less heat. If the flashlight was moved into a cooler environment, it instantly brightened again.
<ref><!--NewBie (16 July 2006). [http://www.candlepowerforums.com/vb/showthread.php?119665-MagLite-2C-2D-4D-3W-LED-drop-in-Technical-Review "MagLite 2C LED drop-in Technical Review"]. ''CandlePowerForums LED flashlight forum''. Post 1. Retrieved 23 January 2013. "When the module is hot, soaking them with a lot of cold spray causes the light output to jump back to when you first turned it on, and the current goes right back up at the same time."-->
<ref>
{{cite web
{{cite web
|title=MagLite 2C LED drop-in Technical Review
|title=MagLite 2C LED drop-in Technical Review
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Some criticized these flashlights for dimming so much so much due to the poor heat sink.
Some criticized these flashlights for dimming so much so much due to the poor heat sink.
<ref name="2C_upgrade" />
<ref name="2C_upgrade" />
<ref><!--[http://flashlightreviews.com/reviews/maglite_mag-led.htm "Maglite Mag-LED: 2, 3, and 4 cell modules"]. FlashlightReviews Archive. Retrieved 23 January 2013. "Some very knowledgeable folks [...] discovered poor heatsinking for the LED, which the circuitry then has to compensate for by quickly lowering output as the module heats up. [...] What I didn't like: Module heats up quickly and output drops quickly."-->
<ref>
{{cite web
{{cite web
|title=Maglite Mag-LED: 2, 3, and 4 cell modules
|title=Maglite Mag-LED: 2, 3, and 4 cell modules
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In 2009, Mag Instrument modified the 2xAA Mini Maglite LED and 3D Maglite LED to each include a better heat sink. Even during extended use, those flashlights now stay at a reasonable temperature without dimming themselves.
In 2009, Mag Instrument modified the 2xAA Mini Maglite LED and 3D Maglite LED to each include a better heat sink. Even during extended use, those flashlights now stay at a reasonable temperature without dimming themselves.
<ref name="2AA" />
<ref name="2AA" />
<ref><!--NLee the Engineer (11 September 2010). [http://www.amazon.com/review/R19LDXP4LJKG36 "Maglite second-gen LED flashlight deserves a second chance"]. ''Customer Reviews: Maglite SD3D016 3-D Cell LED Flashlight''. Amazon.com, Inc. Retrieved 23 January 2013. "Improved Heat Sink: The overheating problem found in 1st-gen LED modules has been solved. That is, the light no longer dims down after just a few minutes of operation. [...] Better Power Management: The new Maglite maintains constant power consumption of 2W as long as battery voltage is above 3.5V."-->
<ref>
{{cite web
{{cite web
|title=Maglite second-gen LED flashlight deserves a second chance
|title=Maglite second-gen LED flashlight deserves a second chance
Brted
confirmed, developer
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