Recent content by chanik

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  1. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    The switcher has thermal protection but it will allow the unit to run quite hot. It just keeps the circuitry from chernobling. The red warning is really there to keep the user from deep dishcarging NiMH or NiCd cells. For other cells and even for NiMH, it does allow the battery to drain below...
  2. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    These will hold up ~forever. Interrupting current is what ultimately destroys a switch, due to the inevitable arcing. Curse you, parasitic inductance. Anyway, our switch is merely a signaling switch to the micro. As for the front tabs, they were simply inserted incorrectly which left them...
  3. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    It's not a supported configuration and will void the warrenty. That said the electronics will survive the experiece. The LEDs, maybe not so well as the unit will put out 1.1Amps into 6 poor little 5mm die. 190mA per LED. That makes bad things happen.
  4. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Real Life Pics Added... One of the main features of the red is the ability to START very dim. In astronomy or warzones or anywhere dark adaptation must be preserved, it is considered bad form to fire up a big blast of light and then dim. It attracts...
  5. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Real Life Pics Added... Dim is 0.5% of full on White and 0.25% on red. That dim enough for you? You can still read even with just the red LED when dark adapted.
  6. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Pics Added Here's something for you all to ponder. jtr1962's MEASURED output for the nichia CS is 55lm/W and 48Cd at 50mA. That seems a tad high to me but with a little extra heat call it 45lm/W and 40Cd per bulb. Times 6 is 240Cd and 55Lm with NiMH at...
  7. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Pics Added The delays are not needed. Just let the red mode 'fall back' into SOS blink at the first optical detent and turn off the light; the dual color run is enabled. normally SOS is the last blinky mode but at the first off blip, if you let up the...
  8. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Pics Added Most heat form 5mms comes out of the cathode leg which the die is bonded to and which we are careful to heatsink well. The unit is well regulated compared to direct drive with dropping resistors whose discharge curves look like a hyperbola. It is...
  9. chanik

    Review: LRI Proton is ***HERE***NiMH Runtime Added...

    Re: Review: LRI Proton is ***HERE***Pics Added It is 1.4W DELIVERED to the LED payload on Li. (1.6W consumed). Of course, the main regulation is synchronous boost switching. Has to be to drive LEDs from 0.8V to 1.5V I PWM on top of that to dim. 60mA per LED. 50mA on NiMH
  10. chanik

    Are ya going to buy a LRI Proton or a Fenix L1T/L2T?

    Just a couple of engineering points: The Proton is 1.4W DELIVERED to the LED load on Li (1.6W consumed from battery) which is why it really wants a Li or NiMH AA cell (1.2W delivered from NiMH). Go ahead and pop the head off if you want to try other LEDs on there. Just 3 short wires to the...
  11. chanik

    LRI proton pre order list now available

    We had some Luxeon and K2 protos and still stayed with the 5mms. Basically, we went for the higher lumens, broader beam, but lets not start down that thread again. Plus it's a 1/2" shorter this way. The boost is synchronous now but it doesn't need to be buck until you try to put over 3.6V...
  12. chanik

    LRI proton pre order list now available

    Don't do that. It will dump ~1.1Amp into the LEDs and burn them. Needless to say this voids the warranty.
  13. chanik

    New Photon AA

    2cm OD on the head, 1.7cm on the body, 9cm long.
  14. chanik

    New Photon AA

    Ah, the rumor mill: The Proton is boost up converted, not direct PWMed. The red is PWMed for dimming. The lowest red setting on ramp up is 0.2%. White is ramp down. If you'll want, I can provide some Protons with the head removed so you can wire up whatever 1.4W and auxiliary LED combination you...
  15. chanik

    LRI Proton coming soon

    It is HA type III and we use the B grade nichias so they are not as blue. Don't get me wrong; it is quite easy for us to do a 2W, probably K2 version; that's how the proton started of course. But it is smaller and much brighter in lumens with the hex nichia cluster. So while CPFers are always...
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