Recent content by johnmeyer

fenix-store
  1. J

    Flashlight for Dyson Stick Vacuum "Headlight"

    I ended up getting a Zebralight SC600Fc IV Plus. I designed and 3D printed a clip to attach it to the main Dyson V11 accessory. The light is capable of 1,800 lumens, but I use it in the 1,000 lumen mode. This provides plenty of light, and gives excellent run time (it lasts longer than charge...
  2. J

    Flashlight for Dyson Stick Vacuum "Headlight"

    Thanks for that help. I've looked at over 50 lights, and something like the ZL SC600F claims a 1+ hour runtime at 1,800 lumens. However, what they won't tell me, and I don't know how to find out, is whether it will only run a few minutes at a time at that level. The next discrete level down is...
  3. J

    Flashlight for Dyson Stick Vacuum "Headlight"

    I've continued to research this, and am still overwhelmed by all the choices. I did find one design, the FW3A, which has options for different optics. The 10510 optics provides an elliptical throw that would be ideal for this application. However, I don't know where or how to buy this item...
  4. J

    Flashlight for Dyson Stick Vacuum "Headlight"

    I gave my wife a Dyson "stick vacuum" for Christmas. Great vacuum, but it does not have a headlight, something that has been on push vacuums since the 1950s Hoover uprights. I am going to use my 3D printer to print a bracket that I've designed to hold a flashlight that will sit just above the...
  5. J

    Automatic Emergency Lighting (update)

    I am looking for a well-made, bright emergency light that plugs into the wall, and turns on when the power goes off. Most of the units mentioned in this old thread Automatic Emergency Lighting are not made any more, and most of them apparently would only run for a few hours. They don't...
  6. J

    Black Friday Eneloop POWER PACK

    Do these come with the charger? Costco often has Eneloops, but in the past year they have always packaged them with a charger. I have a really good Opus charger and have no need for the less-capable charger Costco includes. The link you provide does show a charger, so perhaps I've already...
  7. J

    Test/Review of Charger Opus BT-C2000

    +1 to that. I read through a lot of posts, on many different forums across the web, and for LSD (e.g., Eneloop) batteries, 800 mA for AA and 400 mA for the smaller AAA seems to be the most-often mentioned compromise between charging speed, battery stress due to heat, and fast enough charging to...
  8. J

    Am I the only one? Re used 18650 laptop cells? and iCharger

    Interesting sites. Thanks for the links. I've bookmarked 'em.
  9. J

    Am I the only one? Re used 18650 laptop cells? and iCharger

    Thanks for that recommendation. I am reading other CP threads right now about what charger to get. The Xtar XP, VP, and WP chargers get lots of recommendations. However, the whole point of the original exercise was to get some "cheap thrills" with a $50 knockoff of a $300 high-lumen flashlight...
  10. J

    Am I the only one? Re used 18650 laptop cells? and iCharger

    Just had a bad experience with my first 18650 cells which I purchased as a kit with a cheap charger on Amazon (yes, I know ...). Returned the charger and batteries, but then wondered what to use with the "3800 lumen" knockoff flashlight I bought. Read this thread, and immediately opened up one...
  11. J

    High CRI LED for "Workprinter" movie transfer machine

    Very useful. I am an EE, and have accounts at Digikey, Mouser, Newark, etc., but these "flashlight LEDs" are not stocked by the usual supply houses, so the source of supply, as well as the specific LED spec, is very helpful. Thanks! Yes, the Workprinter contains a small RS-25-5 5V, 5.0A...
  12. J

    High CRI LED for "Workprinter" movie transfer machine

    Thanks! That's a good start. I forgot to ask about a driver board since I am accustomed to the old-fashioned LEDs that just required a dropping resistor. I'll start Googling and see what I can find for a supply source.
  13. J

    High CRI LED for "Workprinter" movie transfer machine

    I have a machine for transferring movie film. It is called a "Workprinter:" and it uses a very old-fashioned, very low CRI LED as the lighting source. This low CRI rating results in colors that are not "true" compared to what I would get with incandescent or halogen lighting. I would like...
  14. J

    Test/Review of Charger Opus BT-C2000

    Thanks! I've read dozens of posts here and elsewhere about NiMH in general and Eneloops in particular. From those posts it is pretty clear that when using a smart charger, 0.5C to 1.0C is the range which provides the best compromise between achieving a full charge in a reasonable amount of time...
  15. J

    Discharging accuracy testing....

    Thanks for the time and effort needed to complete these tests. The only reason I find the consistency surprising is that to get the same results, you had to do an excellent job at getting the cell into exactly the same state of charge each time. Beyond that, about the only thing that I can...
See more

Latest posts

Top