Recent content by Gryloc

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  1. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    So, why not consider that the possible tint shift to the blue of the emitter on the right is due to the fact that the emitter is being driven at 7W, while soldered to a MCPCB board with an unknown heatsink beneath? It is a display piece with momentary buttons, so it is built to be run for very...
  2. Gryloc

    Lumileds uping the ante on the Rebel

    I am now thinking that Lumileds had two separate parts with the name "Rebel ES". I remembered a white Rebel that was guaranteed to be 100lm/W that appeared to have either the same, or slightly better specs than the Rebal 0100 bin. I recall that it was binned at 350mA. I always thought it was a...
  3. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    eatkabob, I recommend that you create your own thread to ask these questions. These questions are out of topic here. You could receive much more attention and advice if you had your own thread. Good luck. -Tony
  4. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    I have been meaning to post a picture that shows a scaled XM-L compared to some familiar LED emitters as a size comparison. I did this couple weeks ago: In the picture above, I scaled the XM-L emitter seen in that previous flyer to match that of the other emitters above (scaling according to...
  5. Gryloc

    I want a red LED thrower

    The Wolverine, Pardon this message if it is overwhelming :o: A quick fix would be a pre-built light using a basic red LED or a filter (less desireable for output), but a higher performance option would be a flashlight that is modified or built by someone in the CPF community or by a store...
  6. Gryloc

    He he... I did not see your visitor message until today. Thank you for the tip. I will have to...

    He he... I did not see your visitor message until today. Thank you for the tip. I will have to try it next time. I knew that there were many free services out there, but I just went to rapidshare because I was in a hurry and I knew that they were okay. I heard of mediafire (I just realized it...
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  7. Gryloc

    Streamlight Sidewinder Mod - Plans & Thoughts

    Hey there. I hate to be the bumper, but how is this project progressing? I look forward to updates. :grin2:
  8. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    Hey all. Thanks for the kind words. I completed those excel files in a hurry because I had to go to class. I was looking back through that file and noticed some huge errors. It was not jtr1962's data, but it was my lousy copy-pasting where formulas were not referenced to the right cells...
  9. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    Crap... Double post. Sorry.
  10. Gryloc

    Cree does it again-160 lumens per watt @350 mA

    I just wanted to post to share my thoughts. I would not doubt if the die is from 4-6mm^2 just because it would take quite a breakthrough to do all this in 1mm^2 or probably 2mm^2. So, I did what I did previously when they announced the XP-G: I tried to make it relatable to current technology. I...
  11. Gryloc

    Streamlight Sidewinder Mod - Plans & Thoughts

    For the most part your idea seems relatively solid, plus you have recognized most potential issues (Vf of 5mm white LED and the heatsinking). You will fit right in at the CPF! I have a crazy idea: Your XP-G emitter has a forward voltage of about 3.0V at 350mA. As the current decreases, so does...
  12. Gryloc

    Where to buy XP-G Warm White R2 & Neutral White R3?

    The flux binning determines how much light is produced. So, a R5 will definitely produce more light than a R2. The lumen curve is adjusted to the human eye sensitivity so a lumen of light is a lumen of light regardless of color or mix of colors. The overall brightness is already binned, so...
  13. Gryloc

    New Luxeon c

    Hmmm. According to the datasheet (a neat thing to check out, btw): 85lm typical at 350mA with a typical Vf of 2.95V and a maximum of 500mA of forward current. CRI of 75 and CCT of 5700K typically. Viewing angle of 120 degrees. A package size of 1.64mm X 2.04mm and a height of 0.7mm. According to...
  14. Gryloc

    Need Help with 5 LEDs one driver

    I hope I didn't scare away stinggray :duck: Come back and learn and be merry!
  15. Gryloc

    Need Help with 5 LEDs one driver

    :welcome: I just want to say that if the LEDs require 13.5-15VDC, then you probably will not get any light if you feed it 12V. Your supply voltage should equal your forward voltage. Try a different LED or a different driver. Forward voltage is the voltage required for the LED to draw the...
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