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Thread: got some Sylvania Dot-Its really impressed

  1. #1
    Flashaholic steve_vance's Avatar
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    Thumbs up got some Sylvania Dot-Its really impressed

    there were some previous threads about the new LED module from Sylvania, the Dot-It.
    http://www.sylvania.com/ConsumerProd...s/Dotitlights/
    I received a couple dozen yesterday (donation for Cityteam, the group working in Mississippi THANK YOU SYLVANIA); I was expecting plastic cases and shoddy workmanship, what I got was a solid machined aluminum case and really great workmanship: THESE THINGS ARE BEAUTIFULLY BUILT.
    The clickie switch is good quality: has a very positive feel. They use 3 AAA cells and advertise about 100 hours of runtime- that's probably using the same "usable light" standard that some of the LED flashlight makers use. I'd give it more like 25 hours of "good " light. The LEDS are all of unoiforn brightness and pure white: I'd estimate that they are the 8000-10000 mcd 5mm that most flashlight makers use.
    The only concern I have is that the battery compartment (accessed thru the back) must be unscrewed to access the batteries. That could be a pain: they are literally VERY TINY Phillips screws and cpould be lost easily. And if you stick it onto a surface, using the supplied sticky backing, you might have trouble changing the batteries. As someone else suggested in a previous post, may be better to attach velcro.
    All in all, though, I'm impressed with the quality, fit, finish and performance of this unit. They did a good job with this one. IMO it's a product design that will be suitable for a number of uses: closet light, camping, tent light, dome light for car or truck, IMO it would be a great item to put in a household disaster kit (it's shaped like a hockey puck- 2.625" diameter X .625" thick-- so the user could put it on a table and face it at the ceiling. The 3 LEDs would be bright enough to light a whole room)
    BRIGHT, TOO!!!
    They'll be sold at Walmart for about ten bucks each, but not every Walmart will have them. There's a list on the Sylvania website.
    Last edited by steve_vance; 12-23-2005 at 10:15 AM.
    There will come a time when incandescent bulbs can only be found in a museum exhibit. LEDs !!!

  2. #2
    Flashaholic bruner's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Hi Steve,

    I just learned about these a few days ago, looking in a magaize, waiting to get a haircut. Glad to hear thay are well-made.

    I looked for them at my Walmart, but couldn't find them yet.

    Can you post any pictures? Maybe take one apart and snap a few shots?

    Thanks,
    Dan
    'Tis the gift to be simple.

  3. #3

    Default Re: got some Sylvania Dot-Its really impressed

    I have one from Wal-Mart, but it has a plastic body cool little light.

  4. #4
    Flashaholic* Christoph's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    They just started an add campain on tv recently.I used a piece of flat rubber magnet on the back and hung on back of front door(insert metal surface here).

    at 100 hours run time intermitant use you may never change the batteries.It should have been turn and pull bayonet type cover they could have saved three screws and the time it took to install them.
    Chris

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    *Retired* NewBie's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    I saw these in the local WalMart this week, hanging on one of those impulse buy strips they seem to randomly locate.

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    Default Re: got some Sylvania Dot-Its really impressed

    I secretly suspect I am getting some dot-it's for Christmas in my stocking...!
    I did email Sylvania in a pointless attempt to learn what bin led's they use. No joy--they won't say other than it's 'proprietary' info.
    Spark headlamp,712-L headlamp,D25c mini,Fenix PD35, E+Lite, Zipka, Novatac 85T.

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    *Flashaholic* greenLED's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Cheap Indium-Puck knock-offs, IMO.

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    Flashaholic* Phaserburn's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by greenLED
    Cheap Indium-Puck knock-offs, IMO.
    Nah, don't think so. I got a couple myself. No one has made led lights that are for under cabinets, etc before. These lights are simple, durable and of good quality. I have on inside a closet and another inside a tall floor cabinet. As I will only use them for a minute or so at most at a time, the batteries will last many years.
    The Phaser: A nice EDC with great throw; heat and runtime can be issues.

    Best Diffusion Film!

  9. #9
    Flashaholic steve_vance's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by greenLED
    Cheap Indium-Puck knock-offs, IMO.
    no offense, Greenled, but if you had one in your hand you wouldn't say that

    I own bazillions of super-high-quality LED lights and I stand by my remarks. Have a great holiday!
    There will come a time when incandescent bulbs can only be found in a museum exhibit. LEDs !!!

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    *Retired* The_LED_Museum's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    I've seen the commercial on television at least two times; I did not find them at Wallgreens or Safeway - there's no Wall*Mart I can get to, so I cannot check them.

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    Default Re: got some Sylvania Dot-Its really impressed

    Amazon.com sells them - $10 each.

    I bought a couple - decent output, seem well made - it's basically a small tap-light w/ LEDs installed.

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    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by DaveG
    I have one from Wal-Mart, but it has a plastic body cool little light.
    are there two versions floating around -
    plastic body vs aluminum body?
    the reality of life... 50% +/- of it will be in darkness (unless you have a light!) dba
    (also EagTac-USA)

  13. #13

    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by lebox97
    are there two versions floating around -
    plastic body vs aluminum body?
    After reading this I gave mine the scratch test with a screwdriver, its looks like it is aluminum! The paint job is so glossy it had me fooled. Steve was right on about this one. Iam more impressed with mine now, not bad for under $10.

  14. #14
    *Retired* NewBie's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    I'm looking at one right now, it has a plastic body, with a thin aluminum over-shell, which comes in different colors.

    These don't even come close to the indium, in almost all aspects.

    Thats like comparing a Surefire to a flashlight you buy at the dollar store.

    Unfortunately, they make crappy tap-it lights that you see on TV. Tap-It lights light up an area, these shoot a narrow beam. In several places where I tried the Dot-It, the narrow beam was shot onto something dark, which for the most part absorbed the light. If you mount it sideways, such that it projects onto another white wall, it helps alot.

    Though fixing these, like you do with the RiverRock lantern, adding various diffusion films, or scratch finishes, would help alot.

  15. #15
    Enlightened
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    Default Re: got some Sylvania Dot-Its really impressed

    Is there anyreason to NOT use these inside a gunsafe?
    Will alkaline batteries vent anything that will cause corrosion?
    Would Lithium batteries be a better ,or worse, choice?

    I wasn't able to find the Dot-Its at Wal-Mart here earlier in the week.

  16. #16
    Flashaholic* Flash_Gordon's Avatar
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    Post Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by db
    Is there anyreason to NOT use these inside a gunsafe?
    Will alkaline batteries vent anything that will cause corrosion?
    Would Lithium batteries be a better ,or worse, choice?
    If you can find a good mounting place, these should be excellent in a gun safe. Neither battery chemistry should present any problems as long as you keep good fresh dated cells in it. I would go for the lithiums simply because of their longer shelf life and you really have a long term use situation in your safe.

    Unknown yet whether these things are happy with the higher voltage of lithiums.

    Mark

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    Flashaholic* DUQ's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    I had know idea they were made of aluminum. I'll grab one when I see them next.
    LED's impress but Incans satisfy

  18. #18
    Flashaholic bruner's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    DUQ,

    To quote NewBie "I'm looking at one right now, it has a plastic body, with a thin aluminum over-shell, which comes in different colors".

    Unfortunately, not all aluminum.

    Dan
    'Tis the gift to be simple.

  19. #19
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    Default Re: got some Sylvania Dot-Its really impressed

    I saw them in the auto section of walmart not in the flashlight section.
    Light is the activity of what is transparent - Aristotle

  20. #20
    *Retired* NewBie's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Well, bad news.

    The DOT-iT is cheap inside, just a resistor, and three LEDs in parallel. Putting LEDs directly in parallel is not a very good idea, as the current is not matched, since LEDs never have the same Vf.

    Of course, what do you expect for 9.95? One resistor under a penny, three LEDs costing 0.25 ea, a 0.10 switch, and at the most, 0.10 in the circuit board. Electronics and LEDs look to cost them under 1 dollar, and at their volumes, it is probably less.

    As such, the unit has basically an unregulated output.

    The unit contains a low cost vacuum metalized piece of plastic that also functions as the reflector.

    But, I measured the current draw, and it is 5.83mA. Since the LEDs are in parallel, this works out to 1.94mA per LED. In this condition, you don't have to worry too much about Vf matching.

    Running the LEDs at 1.94mA means they are running in a very efficient portion of their range, and the runtime should be very nice, as well as give the LEDs a very long life.

    FYI, measurements were made with fresh cells, reading 1.565V each, and the unit contains 3.

    Pictures:



  21. #21
    Flashaholic* Christoph's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    The switch has a momemtary on function can you tell who makes it ?

    C
    Chris

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    Default Re: got some Sylvania Dot-Its really impressed

    I got a set of 3 for Christmas today! I rather like them. I think they will do well inside the safe with either a velcro mount or magnet. Probably a rare earth magnet will work best, glued in place. They also look useful for power outages.
    Spark headlamp,712-L headlamp,D25c mini,Fenix PD35, E+Lite, Zipka, Novatac 85T.

  23. #23
    Enlightened
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    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by The_LED_Museum
    <snip>
    there's no Wall*Mart I can get to, so I cannot check them.
    <snip>
    Well then... in a way, you're a very lucky man.

    Ken

  24. #24
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    Default Re: got some Sylvania Dot-Its really impressed

    cool, so pull the leds and put in 4xdie 5mm parellel leds, dump the resister to say 22-33ohm, and you got a mod in a few minutes.
    then all it needs is a 2 level switch :-)
    as far as closets go, even the push lights did not do the job for any of my closets, "safe" light sounds about right.
    i had to stick in more than 13 5mm leds to get a push light to be a usefull closet light.

    so who will have it modded first?

  25. #25
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    Default Re: got some Sylvania Dot-Its really impressed

    I stopped at Walmart today since my store was listed on Sylvania site. The guy knew what I was talking about and he said they sold out. It was a special purchase. Not sure where I'm going to get them now.

  26. #26

    Default Re: got some Sylvania Dot-Its really impressed

    good idea! sounds like an good price to me and i will test one for sure.

  27. #27
    Flashaholic* Omega Man's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Also got slack jaws and blank stares from the local Walmart employees about this light. They tried to shuffle me around to other departments, and after looking in 3, I gave up.
    RIP Don and Mike Show. Long Live The Mike O'Meara Show!

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    *Retired* The_LED_Museum's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    I tried Larrys Market, Wallgreens, and Safeway...no joy.
    There's no Wall*Mart anywhere I can get to, so I can't check that store.

    If anybody can mail me one of these, I'll gladly reimburse you for the light *and* the postage.

    My address is:

    Craig Johnson
    The LED Museum
    745 N. 104th St.
    Seattle WA. 98133-9211

    This address is published all over the internet, so I do not mind posting it here.
    Last edited by The_LED_Museum; 12-26-2005 at 08:45 PM.

  29. #29
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    Default Re: got some Sylvania Dot-Its really impressed

    I found them at Advance Auto Parts today. They only had 3 left in stock. I picked one up. I like the concept but its not real bright. I will have to replace the LEDs when I get a chance. The packaging says you can apply and reapply to surfaces. I wonder how times it will before it looses its sticky.



    Steve

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    Flashaholic* Pydpiper's Avatar
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    Default Re: got some Sylvania Dot-Its really impressed

    Quote Originally Posted by The_LED_Museum
    I tried Larrys Market, Wallgreens, and Safeway...no joy.
    There's no Wall*Mart anywhere I can get to, so I can't check that store.

    If anybody can mail me one of these, I'll gladly reimburse you for the light *and* the postage.

    My address is:

    Craig Johnson
    The LED Museum
    745 N. 104th St.
    Seattle WA. 98133-9211

    This address is published all over the internet, so I do not mind posting it here.
    Craig, if you still need one, I will go find one for you. Pm me.
    Last edited by Pydpiper; 12-27-2005 at 01:00 PM.
    Just one more light and my collection is complete! Ok, maybe two..

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