Foxfury Rook
Page 1 of 2 12 LastLast
Results 1 to 30 of 39

Thread: New white LED inverter bulb

  1. #1

    Default Re: New white LED inverter bulb

    I wish there was a 1-cell CR123A flashlight with a PR base : (

  2. #2
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by mad_scientist:
    I wish there was a 1-cell CR123A flashlight with a PR base : (<HR></BLOCKQUOTE>

    Well, this bulb would work in it, or any other 3 volt battery source.
    Problem is, as you said, there aren't any PR-based flashlights that use CR123 photo batteries. Maybe somebody will come up with a retrofit for this purpose. [img]images/icons/smile.gif[/img]

  3. #3

    Default Re: New white LED inverter bulb

    How does the step-up behave in terms of regulation?

    A rough calculation shows that the efficiency of the bulb is about 65%, lower than the plain resistor setup with 3-cell source.

  4. #4
    Flashaholic*
    Join Date
    Aug 2001
    Location
    Berkeley, CA
    Posts
    871

    Default Re: New white LED inverter bulb

    Does anyone know of any small 2AAA or 2AA flashlight that use a pr-bulb (where this led would fit)???
    That would be cool. A nice, small (2AAA side-by-side configuration) led light....

  5. #5
    Flashaholic*
    Join Date
    Jul 2001
    Location
    USA
    Posts
    802

    Default Re: New white LED inverter bulb

    "Does anyone know of any small 2AAA or 2AA flashlight that use a pr-bulb (where this led would fit)???
    That would be cool. A nice, small (2AAA side-by-side configuration) led light.... "

    Streamlight made sich a light; it uses a 2AA PR base krypton bulb, with adjustable focus, and a tail (rotary) switch. It also
    had a head that would swivel so the light could be rotated to 90 degrees. I can't remember what they were called, but I have 2 of them at home. They are about the size of a mini Maglight. Also, the Princeton Tec 20 uses a halogen PR base bulb, and it's a side by side AA design. No focus, though.

    Also: re: the single 123 flashlight that uses a PR base bulb: I think Tekna made one, called the Splashlight. It was one of the first flashlights to use the then new lithium battery. I'm going by memory, since I never owned one, but I believe it used a PR base lamp. Again, I don't know if they are still being made, but some distributor might have some.... [img]images/icons/wink.gif[/img]

  6. #6
    Administratior
    Brock's Avatar
    Join Date
    Aug 2000
    Location
    Green Bay, WI USA
    Posts
    6,345

    Default Re: New white LED inverter bulb

    Craig those are the same ones in the Starlights I sent you. They have one that runs on a single cell also, yes, 1.5v AA cell in a PR base.

  7. #7
    Flashaholic*
    Join Date
    Dec 2000
    Location
    San Gabriel Valley
    Posts
    3,074

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by roger:
    Does anyone know of any small 2AAA or 2AA flashlight that use a pr-bulb (where this led would fit)???
    That would be cool. A nice, small (2AAA side-by-side configuration) led light....
    <HR></BLOCKQUOTE>

    Check out "Lumilite" brand flashlights @ Walmart, and Savon/Osco.-they make 'em.

  8. #8
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Brock:
    Craig those are the same ones in the Starlights I sent you. They have one that runs on a single cell also, yes, 1.5v AA cell in a PR base.<HR></BLOCKQUOTE>

    You're right - it's exactly like the bulb in the colorless (transluscent) Starlite you sent. The LED is the same shape, the bulb construction is the same, the collet is the same, even the ratings embossing on the side of the lamp base is the same.

    My bulb seems to be brighter than yours though.
    I'll put the both in identical Starlites and do the bathroom test.
    On the other hand, forget it. I didn't need to even get out of this chair to figure out that my bulb is at least 30-50% brighter than yours, and maybe 100% brighter than the bulb the same guy sent the other day.
    (A 100% improvement in 3 days... now that's sweet!) [img]images/icons/smile.gif[/img]

    When used in your new generation Starlite with the frosted bit in the lens, the beam is similar to your bulb, perhaps a touch wider, and noticeably brighter and bluer.
    It's still no Turtlelite I, but it's coming damn close.

    It works remarkably well in your 1-cell Starlite, but projects a wider beam because the bulb sits maybe a mm higher up in the illuminator head than the original 1-cell bulb does.

  9. #9
    Flashaholic*
    Join Date
    Jul 2001
    Location
    Linz, Austria
    Posts
    1,712

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Stingmon:
    Well, this bulb would work in it, or any other 3 volt battery source.
    Problem is, as you said, there aren't any PR-based flashlights that use CR123 photo batteries.
    <HR></BLOCKQUOTE>

    A Tekna Splash Lite should be very easy to convert (it uses an E10 bulb). I have several of them around here. Also a MonoLith will do (even better).

  10. #10
    Flashaholic*
    Join Date
    Jul 2001
    Location
    Linz, Austria
    Posts
    1,712

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Gandalf:
    the single 123 flashlight that uses a PR base bulb: I think Tekna made one, called the Splashlight. It was one of the first flashlights to use the then new lithium battery.<HR></BLOCKQUOTE>

    No, this is not correct: The Tekna MonoLith was earlier. The MonoLith was available in ~1985. The Splash appeared ~1988 (IIRC it was named different at this time).
    And, as mentioned above: They use either a e10 base bulb or a custom made one (the later MonoLiths with adjustable focus).

  11. #11
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by PeLu:
    No, this is not correct: The Tekna MonoLith was earlier. The MonoLith was available in ~1985. The Splash appeared ~1988 (IIRC it was named different at this time).<HR></BLOCKQUOTE>

    I just came across a couple of rather fuzzy pictures of a "Tekna Splash-Lite", circa 1988.
    It is about the size of an E1, and it uses a screw base lamp.

  12. #12
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default New white LED inverter bulb

    Here is a new 3 volt lamp I just received that uses an LED that wasn't ground out by a third party, but was custom-molded by Nichia Japan specifically for this application.


    This is a standard flange-style PR lamp with the inverter tucked inside the lamp base.
    Marked "2.85V 0.1A"
    The actual current measured for *this* sample was 120.1mA (0.12A) on a pair of nearly-new alkaline "D" cells (less than 5 minutes previous usage).


    This is the new bulb installed in a cheap ($2) plastic Eveready D-cell light (the blue flashlight pictured below), compared to LEDCorp's "Our Best Aluminum Flashlight" with its focus just slightly loosened so the beam size is comparable.



    The new bulb is the spot on the left; the LEDCorp is the one on the right.
    The spot quality may improve when used in a light with a quality reflector - like a Mag or other medium to high end light.

    Both of the test flashlights were set upright on a table and shone at the ceiling to obtain this photo.

    The bulb is available from Abitax for $14.
    I have a link to them on my Abitax Tag Light page, which will do until I make a seperate page for this bulb.

    Note: The bulb is meant to be used in 2-cell (C or D) Mag Lites. Since I don't have a 2-cell Mag, I cannot test it in one.

    A test hookup using the lampholder & reflector from my Turtlelight produced the expected narrow Turtlelite-like beam.

  13. #13

    Default Re: New white LED inverter bulb

    Let me get this straight: is there an actual step-up inside the bulb, or the LED is underdriven?

    ADDED: silly me, should have read the original post with my eyes open.

  14. #14
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by mad_scientist:
    Let me get this straight: is there an actual step-up inside the bulb, or the LED is underdriven?<HR></BLOCKQUOTE>

    There is actually a very tiny DC-DC inverter inside the bulb base, so the LED is driven brightly, possibly to 40-50mA.
    It's brighter than a white Nichia driven "to spec" at 20mA on a lab supply. [img]images/icons/grin.gif[/img]

  15. #15
    Flashaholic*
    Join Date
    Jul 2001
    Location
    Linz, Austria
    Posts
    1,712

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Stingmon:
    I just came across a couple of rather fuzzy pictures of a "Tekna Splash-Lite", circa 1988.
    It is about the size of an E1, and it uses a screw base lamp.
    <HR></BLOCKQUOTE>

    It is smaller than an E1, the MonoLith is about E1 size. Maybe the Splash-Lite was sold under different names in different countries.
    I wanted to convert some of my Splash Lites to 5 leds (actually an electronic engineer owes me the boost regulator .-), but had no time. I wanted to mount it on my hardhat as a secondary light source.
    Maybe I have to get one of these bulbs (to stay on topic .-)

  16. #16
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by PeLu:
    It is smaller than an E1, the MonoLith is about E1 size. Maybe the Splash-Lite was sold under different names in different countries<HR></BLOCKQUOTE>

    This picture shows the Splash-Lite next to an E1 - that's how I arrived at the size comparison. [img]images/icons/smile.gif[/img]

    If I can find the pictures again, they may actually lead me to a less out of focus set (I'm going by date stamp on the files here), which I'll then share with the forum.

  17. #17
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb


    Splash-lite, disembowelled on a table.


    Compared in size to an E1.

    Pictures courtesy of Pooh Bear, whether he remembers taking them or not. [img]images/icons/wink.gif[/img]

  18. #18
    Flashaholic* Quickbeam's Avatar
    Join Date
    Jun 2001
    Location
    FlashlightReviews.com
    Posts
    4,329

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Does anyone know of any small 2AAA or 2AA flashlight that use a pr-bulb (where this led would fit)??? That would be cool. A nice, small (2AAA side-by-side configuration) led light....<HR></BLOCKQUOTE>

    Another good wrapper for one of these LEDs would be an Energizer Waterproof light.



    Not too small but moderately tough and watertight to 30 feet. Available at wallymart. http://www.energizerflashlights.com/

    PS found the Tekna light HERE

  19. #19
    Flashaholic*
    Join Date
    Aug 2001
    Location
    Berkeley, CA
    Posts
    871

    Default Re: New white LED inverter bulb

    Hey, that little tekna splash light seems pretty cool! (I think the E1 is a bit pricey, but nice!)

    Has anyone tried putting one of those new inverter (3 led's?) bulbs into the splash light? I'm wondering how bright it is...

    It would be cool if someone put a regulator in this light, too...and even better, the ls-led! Is there not enough space? It would be a like a cheaper version of the arc-ls w/ the 1 3V set-up...

    I would definitely buy this.

  20. #20
    Flashaholic*
    Join Date
    Jul 2001
    Location
    Linz, Austria
    Posts
    1,712

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Stingmon:
    This picture shows the Splash-Lite next to an E1 - that's how I arrived at the size comparison. [img]images/icons/smile.gif[/img]
    <HR></BLOCKQUOTE>

    Strange. Can you give us the E1's size in numbers (don't have one here)? SureFire does not give that data on their website (or I cannot find it), Toolshop says 80mm long, no diameter.

    The SplashLite is 22mm diameter and 70mm long (without the lanyard attachment). And actually the MonoLith is only 2mm longer.

  21. #21
    Flashaholic*
    Join Date
    Jul 2001
    Location
    Linz, Austria
    Posts
    1,712

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by roger:
    Has anyone tried putting one of those new inverter (3 led's?) bulbs into the splash light?
    <HR></BLOCKQUOTE>

    If you tell where to get one of these bulbs.
    As I mentioned before I wanted to put 5 LEDs into it and a boost regulator (and at least two brightness settings, at least 1:4 apart).

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>
    It would be cool if someone put a regulator in this light, too...and even better, the ls-led! Is there not enough space?
    <HR></BLOCKQUOTE>

    A (reflectorless) Lumiled will fit into it and a very small regulator, but you will only be able to drive the LED to some 200mA, maybe less. The heat will get trapped inside the housing (but thats only my estimation, experiments will show it).
    The Lumiled with reflectors will fit into the MonoLith.

  22. #22
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by PeLu:
    Strange. Can you give us the E1's size in numbers (don't have one here)? <HR></BLOCKQUOTE>

    Sorry, I've never seen one outside of a photograph. I think Brock has one, and he would be the one to ask.

  23. #23
    Administratior
    Brock's Avatar
    Join Date
    Aug 2000
    Location
    Green Bay, WI USA
    Posts
    6,345

    Default Re: New white LED inverter bulb

    Hi, ummm, looking.... 3.25 inches x .8 inches it is 2.5oz in weight. If you ahve any of these light this photo might help

  24. #24
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    hehehe... I don't have a single one of those.
    Maybe you should set up your next photo shoot with a couple of the more common LEDs, like a Brinkmann, a Trek 3, and a Turtlelite. [img]images/icons/grin.gif[/img]
    Not the beams, just the flashlights on a table.

    That M3 looks like it was ripped out of a plasma injector or an EPS relay on the Enterprise. [img]images/icons/smile.gif[/img]


    PICARD:
    "Geordi, I need warp power, and I need it now!!"

    GEORDI:
    "I can't give it to you sir. Some bunghole tore all the M3's out of the warp plasma manifolds! I'm going to have to eject the core."

    [img]images/icons/wink.gif[/img] [img]images/icons/wink.gif[/img] [img]images/icons/wink.gif[/img]

  25. #25
    Administratior
    Brock's Avatar
    Join Date
    Aug 2000
    Location
    Green Bay, WI USA
    Posts
    6,345

    Default Re: New white LED inverter bulb

    LOL ok Captain… the E1 is the third from the right in the front row in this shot, there has to be some in there you would recognize [img]images/icons/wink.gif[/img]


  26. #26
    Flashaholic
    Join Date
    Mar 2001
    Location
    California
    Posts
    256

    Default Re: New white LED inverter bulb

    Brock, I'm impressed. That's quite a collection. And I recognize some good stuff in there.

    PeLu, the E1 dimensions are 81 mm long, 25 mm wide at the bezel end, 20 mm wide at the body.

    I did manage to shoehorn an LS into an E1 with the lens, but it had to be ground down and the bezel drilled (reamed) out. Here is a link to some photos if interested:
    null

    Don't ask me why I did it. The upcoming ArcLS is bound to be better all around. And cheaper considering the new cost of an E1. I toyed with it as a challenge then I couldn't stop until I got it to work. But it does work well!

  27. #27
    Flashaholic
    Join Date
    Mar 2001
    Location
    California
    Posts
    256

    Default Re: New white LED inverter bulb

    Sorry, that web link asks you to sign in. Let's try it this way:




    I hope those worked. The last photo shows a comp of Arc aaa, eternalight x-ray, and E1 LS conversion.

  28. #28
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Brock:
    LOL ok Captain… the E1 is the third from the right in the front row in this shot, there has to be some in there you would recognize [img]images/icons/wink.gif[/img]<HR></BLOCKQUOTE>

    Nice collection, and creative use of closet space.
    Since I have no closets that big or with that much space in them, time to improvise.

    Stupid shelving unit, DIGIMODIFY!!
    (bang, bang, hammer, smash (oops), hammer, bang, bang, tappa tappa tappa...
    And the deed is done.
    Granted, two flashlights hold the infernal thing up, but it will do in a pinch. [img]images/icons/smile.gif[/img]

    *click* and there's the picture.
    The guy at the Fotomat will probably cock his head all funny and think I'm some kind of weirdo when he sees this picture. [img]images/icons/blush.gif[/img]


    This is a "substantial majority" of my flashlight collection. It is not every flashlight I own. There are approximately two dozen more that either wouldn't fit the picture, or are "in use" and not available at the moment.
    Many lights aren't clearly visible because they're behind other lights, or are too small for my POSMF camera to resolve properly.

    One of the lights in here is a loaner, the rest are mine.

  29. #29
    Flashaholic* snakebite's Avatar
    Join Date
    Mar 2001
    Location
    dayton oh
    Posts
    2,122

    Default Re: New white LED inverter bulb

    looks like someone will be cleaning up another mess at the next earthquake!
    i can see the headlines now.
    flashlight junkie buried under his collection. [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img]

  30. #30
    *Retired* The_LED_Museum's Avatar
    Join Date
    Aug 2000
    Location
    Federal Way WA. USA
    Posts
    19,421

    Default Re: New white LED inverter bulb

    <BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by kc8adu:
    looks like someone will be cleaning up another mess at the next earthquake!
    i can see the headlines now.
    flashlight junkie buried under his collection. [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img] [img]images/icons/smile.gif[/img]
    <HR></BLOCKQUOTE>

    That picture is rather deceptive.... on the lab PSU at lower left, the top meter movement you see in the picture is actually at eye level where I'm sitting. So if things atart to shake, rattle, & roll, I'll have about 150 flashlights coming down on top of me. [img]images/icons/mad.gif[/img]

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •