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Thread: The Titanium Sapphire AAA Light

  1. #151
    Flashaholic herrgurka's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by carrot View Post
    Hey I've got one of those too!
    Ah, you Americans, always ahead of the rest of the world, especially us guys in old Europe. Well, I did find that Ctrl-r works, but that's just so 1980's.....
    Post Tenebras Lux

  2. #152

    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by herrgurka View Post
    Yes. But that's more like 3 v or even 3.6 v. 1.7 should be fine!

    "Caution: there is a type of AAA lithium cell on the market that is rechargeable and rated at 3.6v (nominal). These cells are not recommended for use in the Arc-AAA as the voltage is too high. Using them would likely burn the LED out and void the warranty."
    Which is exactly what RocketTomato was pointing out. LiIon don't exist in 1.7v!
    Ray
    Good people need to be there for each other. It's the only way to stay sane in a sometimes insane world.

  3. #153
    Flashaholic herrgurka's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by Codeman View Post
    Which is exactly what RocketTomato was pointing out. LiIon don't exist in 1.7v!
    Sorry for being redundant!

    The only extenuating circumstance I can invoke is that it's 1:10 am
    Post Tenebras Lux

  4. #154
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Hey Don's posted them on B/S/T, quick go and get one before they are gone got mine!

  5. #155
    Flashaholic* coyote's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    besides, what else do we have to do?

  6. #156
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    made ya look!

  7. #157
    Flashaholic* coyote's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by olrac View Post
    Hey Don's posted them on B/S/T, quick go and get one before they are gone got mine!
    azzole!
    ;-)

  8. #158
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by coyote View Post
    azzole!
    ;-)
    gotcha!!

    just keepin you on your toes coyote!

  9. #159
    Flashaholic* coyote's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    it worked 'cause i did actual look.

    i owe you one buddy!

  10. #160

    Default Re: The Titanium Sapphire AAA Light

    Down the road, when you new folks need to come back to this thread to look something up about the Sapphire, I hope you have fun wading through your useless posts.

    If you need something to do, why don't you start a "Waiting on the Sapphire" thread so that this one can actually contain useful content?
    Ray
    Good people need to be there for each other. It's the only way to stay sane in a sometimes insane world.

  11. #161
    *Flashaholic* carrot's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Hey that's not as bad as the Busse fanboys. Over at BFC all these fake "Jerry Busse" accounts will pop up and post fake sales threads to trick buyers into placing an order too early and losing their chance. All in good fun of course.
    [gearcarrot.com] Collector and distributor of (mis)information.
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  12. #162
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by Codeman View Post
    Down the road, when you new folks need to come back to this thread to look something up about the Sapphire, I hope you have fun wading through your useless posts.

    If you need something to do, why don't you start a "Waiting on the Sapphire" thread so that this one can actually contain useful content?

    You have been doing your part to clutter it up too Mr. Self Righteous, have a coke and relax

  13. #163

    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by McGizmo View Post
    The LE I am using consists of a Nichia 310DS LED and it is overdriven at leat initially by the converter provided by Arc. Arc has had extensive experience with the converter and the Nichia LED's and I defer to their expertise on these matters.
    Quote Originally Posted by Morelite View Post
    Why would 1.7v primaries overdrive the LED? The light engine or converter should still deliver the same current and voltage to the LED it just does'nt need to boost quite as much with a 1.7v input as it would with 1.5v or less input.
    If the 1.5 V primaries are already ovedriving the LED, I assumed that the 1.7 V Li primaries will do so as well but for a longer time since they will stay above 1.5 V longer.

    Is the Arc driver boost or direct drive?

  14. #164
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    Default Re: The Titanium Sapphire AAA Light

    Okay, dark now in Ohio, thunderstorm passed. Can you ask Don to hold off the next 30 minutes while I take dogs for walk with 3 x 18650 & WA01185.

    McGizmo for backup.


    Okay - I'm back
    Last edited by nfetterly; 03-08-2009 at 06:45 PM.


  15. #165
    Flashaholic herrgurka's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by RocketTomato View Post
    If the 1.5 V primaries are already ovedriving the LED, I assumed that the 1.7 V Li primaries will do so as well but for a longer time since they will stay above 1.5 V longer.

    Is the Arc driver boost or direct drive?
    Direct drive wouldn't work, so boost it is.

    "Using a "step-up" allows the light to be made small enough to carry but not require unusual batteries. Step-ups are known as, "DC-DC Power Converters" by those in the electronic trade. Within the converter family, their are various topologies available. The Arc using a switching boost topology."
    Post Tenebras Lux

  16. #166
    Flashaholic* Morelite's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by RocketTomato View Post

    Is the Arc driver boost or direct drive?
    I would think that it has to be a boost driver since 1.5 or even 1.7 won't power up a white LED since the Vf is greater than 3v. Direct drive would be very dim I think.

  17. #167
    *Flashaholic* carrot's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    The Arc driver is a fairly simple boost circuit.
    [gearcarrot.com] Collector and distributor of (mis)information.
    The Guide to High-End Lights | Flashlight Story Collection updated Sept 28
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  18. #168

    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by carrot View Post
    The Arc driver is a fairly simple boost circuit.
    Quote Originally Posted by Morelite View Post
    I would think that it has to be a boost driver since 1.5 or even 1.7 won't power up a white LED since the Vf is greater than 3v. Direct drive would be very dim I think.
    Quote Originally Posted by herrgurka View Post
    Direct drive wouldn't work, so boost it is.

    "Using a "step-up" allows the light to be made small enough to carry but not require unusual batteries. Step-ups are known as, "DC-DC Power Converters" by those in the electronic trade. Within the converter family, their are various topologies available. The Arc using a switching boost topology."

    Thanks for the info everyone, that makes sense.

  19. #169

    Default Re: The Titanium Sapphire AAA Light

    I'll be feeding mine regular Alkaline cells. Overdriving a low-output, long runtime light doesn't make sense to me. If I was in a low-temp environment, lithium would make sense.
    Ray
    Good people need to be there for each other. It's the only way to stay sane in a sometimes insane world.

  20. #170
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by Codeman View Post
    I'll be feeding mine regular Alkaline cells. Overdriving a low-output, long runtime light doesn't make sense to me. If I was in a low-temp environment, lithium would make sense.
    +1 on that

  21. #171
    Flashaholic* mudman cj's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    I'm surprised there haven't been more people that would use Eneloops in this light. Lithiums exacerbate the overdrive of the LED and alkalines could leak. Nimh self-discharges, so its not as great for long term backup, and that leaves LSD Nimh cells.


  22. #172
    Flashaholic herrgurka's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by mudman cj View Post
    I'm surprised there haven't been more people that would use Eneloops in this light.
    First you have to get the light, then you can worry about the right choice of batteries. But I'd use Eneloops (or some such type of batteries), seems to be a good choice.
    Post Tenebras Lux

  23. #173

    Default Re: The Titanium Sapphire AAA Light

    I'll probably put eneloops in mine. I've got a couple around somewhere from when they were on sale at costco awhile back, and they're probably the closet thing to 1.5v that I have around. I'm assuming of course that any brightness difference between 1.2v and 1.7 will be mostly negligible to the naked eye?
    The LED ... making up for the fact that titanium doesn't glow inherently

  24. #174

    Default Re: The Titanium Sapphire AAA Light

    You won't be able to tell a difference with a fully-charged LSD cell.
    Ray
    Good people need to be there for each other. It's the only way to stay sane in a sometimes insane world.

  25. #175
    Flashaholic* Scottiver's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Yep, I use Eneloop Nimh in my Arc AAA's. They work great!

  26. #176
    *Flashaholic* carrot's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Maybe Don has forgotten about us? Or maybe he has decided to keep all of the Sapphires for himself. Either way I'm getting antsy.
    [gearcarrot.com] Collector and distributor of (mis)information.
    The Guide to High-End Lights | Flashlight Story Collection updated Sept 28
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  27. #177
    Flashaholic* coyote's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    i was antsy 10 hours ago.

    i'm just tired now....

  28. #178
    Flashaholic herrgurka's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by carrot View Post
    Maybe Don has forgotten about us? Or maybe he has decided to keep all of the Sapphires for himself. Either way I'm getting antsy.
    Antsy? I'm busy looking for ants below my pillow. 02:04 AM
    Post Tenebras Lux

  29. #179
    Flashaholic* olrac's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Arrrgghh! me hearties, ye of little faith will not get the treasure, be strong


    Post 1313 doesn't bode well for this trip matey

  30. #180
    Flashaholic* Dan FO's Avatar
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    Default Re: The Titanium Sapphire AAA Light

    Quote Originally Posted by Morelite View Post
    I would think that it has to be a boost driver since 1.5 or even 1.7 won't power up a white LED since the Vf is greater than 3v. Direct drive would be very dim I think.
    You are correct. http://www.cpfreviews.com/Arc-AAA-Premium-GS-LED.php

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