Recent content by Fallingwater

fenix-store
  1. Fallingwater

    Driving a red and a white LED from a 18650

    Apologies if this is a silly question - I haven't tinkered with LEDs for ages and with coloured LEDs for even longer, so I've forgotten a lot of what I knew. I'm making a lighting system for my bicycle. I'd like to use a single red Cree Q5 in the rear and a white one in front. (Why such old...
  2. Fallingwater

    I have a Nichia GS and a 1AA battery body. What driver do I want?

    I've lost my beloved Fenix E01. I took out of my pocket my keychain, and only the flashlight's body remained - the head had unscrewed at some point, and been lost along with the battery. Having done my grieving, I've decided the next keychain light will improve on the battery, as I find AAs...
  3. Fallingwater

    Keychain 1AA - multimode twisty

    I'm checking out the L3 Illumination products. Is the XPG version cold-white? Would you recommend the XPG or Nichia version?
  4. Fallingwater

    Keychain 1AA - multimode twisty

    I've lost my beloved Fenix E01, and I thought of replacing it with something better. I have space in my pocket so a 1AA light is preferable, but I'd still prefer it to be a twisty and as small as possible. Multiple modes are an absolute necessity. Bonus points if there are no useless strobe...
  5. Fallingwater

    Battery stuck in E01

    Found this thread from a Google search. A friend's Olight i3 has an alkaline AAA (Duracell, natch) stuck fast in its tube. They tried with various pliers to no effect, and I've just finished drilling a hole and trying to get it out with a wood screw - needless to say, the screw stripped the hole...
  6. Fallingwater

    What 18650s require 4.35V charging?

    So far this hasn't been a problem. I realize it might not go so well every time, but I'm optimistic. Besides, nobody's done this to an Asus phone yet so there's only one way to find out...
  7. Fallingwater

    What 18650s require 4.35V charging?

    By harvesting the PCB from the existing phone cell and hooking it up to a parallel arrangement of 4.35V 18650s everything should work fine. I've done it before, and it works. Thanks, I'll be looking them up in online stores.
  8. Fallingwater

    What 18650s require 4.35V charging?

    I read about these coming from Panasonic, the NCR18650B, but apparently it was an error as new reviews say they charge to 4.2V. I've Googled for 4.35V ones but I get inconsistent data, with some pages claming one voltage and others the other, for the same cell models. Are there any actual...
  9. Fallingwater

    Cree LED lifespan / current?

    A little question that occasionally springs up in my mind. If I remember correctly, white LEDs lose output because the phosphor degrades due to the heat, to the point it begins to impede light from the blue die underneath making it out. But: what if one were to use a phosphorless blue LED of...
  10. Fallingwater

    Has anyone tried testing/using 10440 cells out of cheap e-cigs?

    They're selling cheap e-cigs in dollar or pound stores, and apparently they have 10440 LiIon cells in them, because primaries don't have enough power density for the heater filament to get sufficiently hot. My country is not technologically advanced enough and our 99p stores aren't yet selling...
  11. Fallingwater

    Like a Fenix E01, but AA

    I love and adore my old E01. It hangs on my keychain and has proven itself useful more times than I can remember. The only problem is that it's smaller than I need it to be; I could easily carry a 1AA light instead and enjoy the much better battery life, but all 1AAs I can see are either...
  12. Fallingwater

    Ultrafire U-6T, U-7T and U-8T

    I've had a look at the new arrivals page in the usual Chinese megastore whose URL is only two letters, and found these three monsters. The number in the name is that of the XM-L LEDs they have. I've pretty much given up trying to figure out what brand the Chinese manufacturers are cloning this...
  13. Fallingwater

    Like the Olight i2, but with memory

    The title says it all. The i2 is pretty much my ideal 1AA light - bright, reliable, cheap, twisty - if it wasn't for the fact that it always starts in low, which I find very irritating. I'd like a light just like it - price included - but that'll remember what mode I switch it off in and start...
  14. Fallingwater

    Long forgotten lights!

    Same here. I actually have one of the first batch of DIs, the ones in the discounted super-promo Nitecore did when they only had the DI as their product and were trying to get known. The first ones were notoriously iffy with 14500s due to somewhat overenthusiastic discharge protection, but they...
  15. Fallingwater

    Are these flat cells Li-pos or Li-ons

    Actually it's a term for Lithium-Polymer, which is why they're also occasionally called "li-poly". That they happen to be in a pouch is coincidental and not always true, as there do exist LiPos in metal casings, though this is not typically the shape you seen them in the consumer world - LiIons...
See more

Latest posts

Top