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Thread: Energizer Key-Chain LED

  1. #1
    Farewell our Curmudgeon Administrator Roy's Avatar
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    Default Energizer Key-Chain LED

    Found this at the local Wal Mart! A no-name keychain led light from Energizer for a grand total of $4.82!



    It is operated by a bush button with no provision for locking it in the on position. It has two split rings held together with a swivel. On fresh bateries (2 x CR 2016 LI)it is brighter than my AAA LE...300ma vs 218ma on my photocell set-up.



    Access to the batteries is gained by removing two tiny screws and removing the back. The push button slides AWAY from the led and takes the top battery with it (battery is stuck to the button). The second battery comes out by turning the light over. The bottom battery goes in + side down and the second goes in + side down. The push button slides back on the leg of the led to complete the battery change. The leg of the led is used as the spring for the push button. Very simple design, the batteries are placed between the legs of the led and the push button pushes the negative leg onto the battery while the positive end of the battery sits on the positive leg of the led. Now hunt the two tiny screws down and put the case back together.

    The front of the package claims "20 hour runtime between battery changes." On the back, in small print, it says; "Coninuous 20--hour run time when used with lithium coin cells.." The light comes with a lifetime guarantee.

    Hey, for less than $5.00, not a bad deal IMHO!
    Good stocking stuffer for the Holidays!

  2. #2
    Mostly MIA Administrator

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    Default Re: Energizer Key-Chain LED

    Roy--totally off topic question here

    What do you shoot your photos againt? White paper...?

    Also, I just had this thought...runtime plot planned?

  3. #3
    Flashaholic*
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    Default Re: Energizer Key-Chain LED

    It looks different and smaller then previous versions of the Energizer keychain light.

  4. #4
    Farewell our Curmudgeon Administrator Roy's Avatar
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    Default Re: Energizer Key-Chain LED

    I do almost all of my pictures using the HP-4400c flat bed scanner. It has tremendous depth-of-field.

    I use a program named ADCsee (came with the scanner) to scale the pictures down to 400 - 600 pixels wide. The ones here were 400 pixels.

  5. #5
    Farewell our Curmudgeon Administrator Roy's Avatar
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    Default Re: Energizer Key-Chain LED

    I have no plans to do a runtime plot on this flashlight. The batteries can best be described as wafers...very thin! I'd bet they would'nt last more that 30 minutes of continous on time.

  6. #6
    Flashaholic*
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    Default Re: Energizer Key-Chain LED

    If like a photon then it will run for several hours BUT after the first hour it will be a small fraction of it's original brightness and then dim slowly after that. Question, in the picture without the batteries, is the LED held in place? With a photon II, the whole LED and switch assembly will come out when changing batteries unless you're very careful as they are not locked in place.

    Roy, off topic but can you please post the link again to the site that contains your runtime graphs? This time I promise I will bookmark it!

  7. #7

    Default Re: Energizer Key-Chain LED

    geepondy,

    you can find Roy's runtime graphs at TheLightSite, kindly being hosted by Quickbeam

  8. #8
    Flashaholic*
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    Default Re: Energizer Key-Chain LED

    Less than $5???? OH SHIT! I gotten mine for $25 SGD!!!!!! **starts screaming words that won't win George Bush any votes if he is heard using em**

  9. #9
    Farewell our Curmudgeon Administrator Roy's Avatar
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    Default Re: Energizer Key-Chain LED

    The led is held in place by friction. If you look real close you will see a lip around the base of the led that fits in a grove in the housing. It is not glued in, so it can be removed. In some lights there might a loose enough fit to allow the led to fall out, but not in the one I took apart.

  10. #10
    Flashaholic* snakebite's Avatar
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    Default Re: Energizer Key-Chain LED

    i have seen this same light marketed by smith&wesson for over $20!
    $15 for a silly logo stamped on it.

  11. #11

    Default Re: Energizer Key-Chain LED

    These are the same lights that Target sells in their camping supplies section, with the brand name "CampBright" for about the same price.

    The back of the package boasts a battery life of 10,000 hours. Amazing, eh? [img]images/icons/rolleyes.gif[/img]

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