|
|
| Welcome to 3T! Please take the time to register and join in on the friendly,knowledgeable watch talk.Please note that not all registrations will receive an immediate activation e-mail.Those who do not receive an immediate notification will be activated manually within 48hrs. by an admin. without an e-mail activation url sent to you,you may then sign in using your username and password,if you feel there is a problem please e-mail us at timetechtalk@hotmail.com and include your name and username and we activate your account.Thank You! |
| Moderated by: 3T | Page:   1 2 3   |
|
|||||||||||||
| To Cheeps and all those who have ... | Rate Topic |
| Author | Post |
|---|
| Posted: Mon Jul 10th, 2006 07:37 pm |
|
13th Post |
|
KenC Admin 
|
The really bright ones that have that pure bluish white color are Xenon. Actually, a rather old technology developed back in the late 50's / early 60's by the military for use in the spotlights on the M60 Tank. I believe the actual chemical compund used in Xenon was discovered in 1898..................wow...wasn't the interesting! :D Last edited on Mon Jul 10th, 2006 07:40 pm by KenC |
||||||||||||||
| |||||||||||||||
| Posted: Mon Jul 10th, 2006 08:10 pm |
|
14th Post |
|
e.avery 3T WIS 
|
We are just now switching zenon to the 5 watt LED's that produce 100 lum. of light for 1 hour and 1.5 hrs. of useful declining light on 2 lithium batteries. The Zenon will produce 65 lum. of light for 1 hr.. LED only works on smaller lights. Larger lights are still zenon and will not change any time soon I think. The LED military grade bulbs are covered under ITAR so do not get any ideas of shipping them out of the country. The Hellfire is the mother of all zenon lights only sold to US military.
|
|||||||||||||
| ||||||||||||||
| Posted: Mon Jul 10th, 2006 08:45 pm |
|
15th Post |
|
KenC Admin
|
e.avery wrote: We are just now switching zenon to the 5 watt LED's that produce 100 lum. of light for 1 hour and 1.5 hrs. of useful declining light on 2 lithium batteries. The Zenon will produce 65 lum. of light for 1 hr.. LED only works on smaller lights. Larger lights are still zenon and will not change any time soon I think. The LED military grade bulbs are covered under ITAR so do not get any ideas of shipping them out of the country. The Hellfire is the mother of all zenon lights only sold to US military. I did not know that........very interesting....I can tell you that when we switched on the Xenon lights on those tank guns...............nothing could hide from us!!!!  Come to think of it, I believe the Xenon searchlight was originally mounted on the M48 Patton Tank. (The precursor to the M60 MainBattle Tank....we also used the M48 in Vietnam as it gave us a way to use up the surplus and keep the M60's in Europe) Above the main gun was a 1 million candle-power Xenon searchlight. This light had both a white light and an infrared mode. It was boresighted with the main gun and gunsights so that it could be used to illuminate a target at night.
|
||||||||||||||
| |||||||||||||||
| Posted: Tue Jul 11th, 2006 07:27 am |
|
16th Post |
|
watchboy 3T WIS 
|
Boy now what have you done? I am looking into HELLFIRE now. I did a search a came up with Hellfire X-11. Do you have that and is that the one you mentioed that is the BEST? Or is there another model by Hellfire? Gee I think I need to get one too! :) I think they use XENON bulb but not XENON gas. What you see in BMW or Mercedes for e.g., the XENON light actually requires a Blaster to light up the bulb initially(maybe 1-2 seconds) and then it will stablizes the light with a constant voltage. So the technology used in cars, I believe is not the same as the torchlights. The torchlight simply uses highly power to light up the low watt xenon(?) bulb or maybe just a very white bulb. As for the Tank Ken mentioned, I am not too sure what technology it used back then. e.avery wrote: We are just now switching zenon to the 5 watt LED's that produce 100 lum. of light for 1 hour and 1.5 hrs. of useful declining light on 2 lithium batteries. The Zenon will produce 65 lum. of light for 1 hr.. LED only works on smaller lights. Larger lights are still zenon and will not change any time soon I think. The LED military grade bulbs are covered under ITAR so do not get any ideas of shipping them out of the country. The Hellfire is the mother of all zenon lights only sold to US military. Last edited on Tue Jul 11th, 2006 07:35 am by watchboy |
|||||||||||||
| ||||||||||||||
| Posted: Tue Jul 11th, 2006 09:24 am |
|
17th Post |
|
e.avery 3T WIS
|
Here it goes, Xenon bulbs use high filament temp. over 5000 deg. F cause tungsten atoms to boil off the filament and migrate to the cooler glass wall of a lamp, where they condense to form a dark light-blocking layer. Adding a high-pressure inert gas inhibits tungsten boil off, which increases useful life of the bulb. The gas also permits increases light output by increasing efficiency. Argon and krypton are used as inert fill gases, but they don't work as well as xenon, and xenon is much more expensive then the other 2. Hellfire lights are for mounting on tanks and 50 cal. rifles. It requires a power source and is not very portable. It is not used by anyone other than the military. It is not practical for anyone else. Private defense forces which is a huge business and is even used by the US Gov. for training and other with Spec. Ops. tend to use night vision they are light weight. Invisible lasers that operate at the 830 nm wave length and are used with the night vision sights to allow targeting. The visible xenon lights produce enough IR light to allow the use of filters so that they can be used as night vision illuminators. LED does not they are to efficient and do not produce enough heat. This is a summery on a topic that is deep and we could have a website on it alone.
|
||||||||||||||
| |||||||||||||||
| Posted: Tue Jul 11th, 2006 10:15 am |
|
18th Post |
|
mkyuncle 3T WIS
|
Hi Jackie, Here is another alternative, if you want an LED flashlight. This is a crank flashlight, will not last as long as the shake ones(depends on life of the rechargeable batteries), but it's brighter and shines a lot longer on 2 minutes of cranking! http://www.rotoglo.com/RotoGlo.htm Barton Last edited on Tue Jul 11th, 2006 10:19 am by mkyuncle |
|||||||||||||
| ||||||||||||||
| Posted: Tue Jul 11th, 2006 10:48 am |
|
19th Post |
|
watchboy 3T WIS
|
Wow! Thanks Barton! That is something I've never seen before! Actually I have 2 LED light, one is with 32 LED and the other is with 49 LED!!!:P:P:P The 49 LED is VERY VERY GOOD!!! And it is not very expensive and uses 3 X AAA batteries. I also have a Suefire G2 which is very good for my level of application. But I was curious all along for a torchlight w/o batteries!:) mkyuncle wrote: Hi Jackie,
|
||||||||||||||
| |||||||||||||||
| Posted: Tue Jul 11th, 2006 10:58 am |
|
20th Post |
|
watchboy 3T WIS
|
So Eric, is the Hellfire X-11 applicable for household/personal use? Cos I saw some online and it seems to be quite good though a little high price of a price tag of around $110++. http://www.lapolicegear.com/daopshefl.html e.avery wrote: Here it goes, Xenon bulbs use high filament temp. over 5000 deg. F cause tungsten atoms to boil off the filament and migrate to the cooler glass wall of a lamp, where......
|
|||||||||||||
| ||||||||||||||
| Posted: Tue Jul 11th, 2006 11:28 am |
|
21st Post |
|
e.avery 3T WIS
|
That is another company playing on the name. Surefire is the suppler of the hellfire for the military. The best little xenon is a Nitrolon for $36 by Surefire. Has a lifetime warranty and just works. Battery store life is 10 yrs and has 1 hr of run time and can be used as a defensive weapon to blind an opponent. I carry one in my car nice for road side emergences. The shake light is good if you get the right one. I use the 123 Lithium batteries all the time and buy them in bulk packs, so the $2 a piece is not that bad. Use to carry Minimags for emergencies but the batteries even the best would corrode if you did not change them often enough, and you would just have to throw the light away. Last edited on Tue Jul 11th, 2006 11:29 am by e.avery |
||||||||||||||
| |||||||||||||||
| Posted: Tue Jul 11th, 2006 11:44 am |
|
22nd Post |
|
watchboy 3T WIS
|
I have the Surefire G2. :) Here is the pic with some watches.
|
|||||||||||||
| ||||||||||||||
| Posted: Tue Jul 11th, 2006 12:41 pm |
|
23rd Post |
|
e.avery 3T WIS
|
They are good lights I have never found any better at any price. I carried one of the Nitrolons as a back up light it is hard to work with while shooting and moving. I have just changed over all of my lights to LED to get the battery life less to deal with, hope I do not get pulled into this current conflict, have have been studying Afghanistan since I was 12 and that was my area of interest starting in Military School. That is why I do not own a Russian watch it would be a little bit hypocritical to purchase from people that I use to help over throw.
|
||||||||||||||
| |||||||||||||||
| Posted: Tue Jul 11th, 2006 12:44 pm |
|
24th Post |
|
CHEEPS 3T WIS 
|
Hey Jacky! Sorry for my late arrival to this party. I don't own one of the "shake & bake" lights, but after all these responses and posts it appears that most of us have the same addictive hobby with these Surefire lights. I have gone nuts as usual and have been mounting them on most of my guns also! My daughter was sitting in my chair in the TV room yesterday and picked up the Surefire I keep on the side table and remarked.."You have more toys than anyone I have ever seen." I told her it wasn't a "toy"................it was my VERY neccessary emergency light for when the power fails! She replied................"Yeah..................but you have these all over the house!" I am PREPARED! What can I say? Darn things have gotten EXPENSIVE though! Anyone into SILENCERS?:cool::cool::cool: :dude:CHEEPS VOTE FOR SYLENSINGDAMOUTHOFYKW
|
|||||||||||||
| ||||||||||||||
| Current time is 04:22 pm | Page: 1 2 3 |
| TimeTechTalk.com > Time Tech Talk > OT > To Cheeps and all those who have ... | Top |
