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  1. dchao

    My LED fling is over

    A lower CRI will also affect different people differently. For example, I have a mild color-blindness, so with lack of reds from white LED's, I am having hard time distinguish between all shades of red, some very darker reds appear as blacks to me. That's why I don't like white LED for outdoor...
  2. dchao

    Incan Advice Needed for Two Purposes

    :thumbsup: This is the baby you need: LumensFactory EO-9 (9V, 380 Lumens) Extreme High Output Bulb Caution: IMR's are unprotected, when used in unregulated flashlight, do not let the cells go completely flat. Charge them as soon as the light output starts to drop noticeably.
  3. dchao

    My LED fling is over

    Also - warmer light (reds) has better ability to penetrate atmosphere and fog. Regular white LED made from blue LED and yellow phosphor has limited ability to penetrate fog.
  4. dchao

    My LED fling is over

    The day when our car headlights are all made from LED's, that's when incan will become history. :sigh: But we are not quite there yet.
  5. dchao

    New Surefire on the way

    From my IMR16340 test. After 28 min, I did noticed that the light started to go dim (going into direct drive). I think the flashlight should be switch off immediately, and the batteries be replaced, so it doesn't go into direct drive for too long. Charge the depleted Li-Ion battery...
  6. dchao

    Runtime of P90 in different cells

    Don't you need two 18500's to run P91? Two 18650's would be too long to fit into the body.
  7. dchao

    New Surefire on the way

    Thanks for the heads up, I did add in the 10 Ohm resistor. That's why in my calculation, the total resistance is 100 + 10 = 110 Ohm. The stock resistor on the Y/G is 68 Ohm. I have one of the small Lupes to read these small numbers :cool: It's higher than the White LED version, because Y/G...
  8. dchao

    New Surefire on the way

    My replacement resistors are also 100 Ohm's. It gives good compromise between 3.7V rechargeables and 3.0V primaries. Let's look at the difference in current through the LED between rechargeable and primary: <Rechargeable Battery> max current through the 10 ohm tailcap: I (max_rechargeable)...
  9. dchao

    New Surefire on the way

    Even the IMR16340 is rated at 550mAH, but it's voltage is 23% higher than 123 primaries (3.0V vs 3.7V). Given that the LVR is very efficient at converting excess voltage/energy into runtime by using PWM. We can expect the IMR16340 has a longer runtime than a primary 123 cell rated at the same...
  10. dchao

    New Surefire on the way

    Hi computernut, I have also just received my A2 Y/G a week ago. I bought mine to use with IMR16340's from AW. I would not have got it without the rechargeable option, and now there is one. Since LiMN can be used in series, whereas there could be problem with Li-Ion ones. LiMN's are also...
  11. dchao

    looking for an incandescent for work

    I'm afraid, SF lights are mostly designed around the 123 primary cells. And SF incan bulbs are therefore either 6V or 9V, if you insert one 18650 (3.7V), they will look dim. I recommend you take a look at Wolf Eyes' incan flashlights. They are designed around Li-Ion rechargables...
  12. dchao

    A2 Aviator?

    You can always try Yellow or Y/G LEDs, they don't have either the reddish or bluish spill. I think this is the best solution, as you get to keep the low LED beam.
  13. dchao

    Wolf-Eyes 6A-rechargeable VS Streamlight Strion

    According to flashlightreviews: WE 6M: Throw=6700(81.85) Lumens=9000(94.86) Strion: Throw=7246(85.12) Lumens=5000(50.00) WE 3.7V bulb produces more output but has shorter runtime. Strion has more throw but I double if one can see the difference. Like Paul's said, you can put on different...
  14. dchao

    What's the brightest single-cell incan?

    RCR123 rechargeable with 3.7V LA is your brightest option, but you have to be prepared to use unprotected cells. 3.7V LA draws 2A, protected RCR123 can't take that much current. You will probably get 15 min runtime out of it. :naughty:
  15. dchao

    P60 or MN03

    brighter: If the two bulbs have the same rated voltage and power. The brightness/throw is defined by the reflector. MN03 has a built in reflector inside the head, so I would imagine SF could use better material for the internal reflectors than the P60's disposable ones.
  16. dchao

    Beamshots--five 9V to 14V miniturbos

    Paul, Can you give us an update: Is your D36-12V LA still working under the three-cell (rechargable) configuration? I also like the output from the 12V LA, but I also want long bulb life ;)
  17. dchao

    What will YOU do with your Wolf Eyes 168A extender?

    I want a 150A extender This is what I have: the Raider body (2x150A) I *need* an 150A extender so I can run 13V D36 LA with my mini-turbo head. Wolf Eyes: Are you listening :naughty:
  18. dchao

    Check out my new rechargeable Wolf-eyes setup (pics inside)!

    If you are looking to get BUZ's setup all from Lighthound.com. This is the link: http://www.lighthound.com/sales/wolfeyes_6mx_flashlight.htm This is what you need: Wolf-Eyes 6MX Turbohead Flashlight 3.7 volt, NO Batteries $42.99 6M is a great thrower, whereas the 6A/P (D26 head) is...
  19. dchao

    BatteryStation 123A goes boom in a G2 with Kroma TailCap"

    kumar, I think, in the low mode, you are putting way too much current down that resistor in the tailcap. We don't know what rating does that resistor have, but probably 1/2W. 1W resistor maybe too big to fit into the tailcap. In low mode, you are more than likely to be putting 200mA down...
  20. dchao

    BatteryStation 123A goes boom in a G2 with Kroma TailCap"

    Re: G2 goes boom! You should change the title to: Battery Station 123A's go Boom :thumbsdow

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