Recent content by pyro

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  1. pyro

    One easy way to copper plating aluminum

    My guess is that it erases ;) the aluminium oxides from the surface. It is done with the wet eraserto prevent new oxides from building.
  2. pyro

    Frame mounted vs bar mounted headlights

    Get a helmet light to supplement whatever you choose...
  3. pyro

    Uninterruptable farmhouse lighting

    Re: Uninterruotable farmhouse lighting Welcome to CPF! IMO the best solution ist to buy a genereator and a way to get the power in to your house grid. Then you can also run your fridge, TV and maybe even a microwave and don't have to worry how long your battery lasts. The generator may come in...
  4. pyro

    different "outputs" on Xenons - why?

    One part of the confusion here is that in german HIDs are known as Xenon.
  5. pyro

    Sold/Expired All spf Olight SR90 w/SBT90 ADDED! & Complete MAG85

    Re: WTS: Olight SR90 w/SBT90 ADDED! & Complete MAG85 I'll take the Olight if we can work out shippinng to Germany. -pyro
  6. pyro

    Lupine Bike Lights, anyone using them?

    Do you really believe that? Everyhing! can fail, even such expensive lights.
  7. pyro

    buying a used car battery

    24 amps would be insufficient. Depending on the size and type of the motor current while starting can easily reach 300 A for a short duration.
  8. pyro

    XML Heat differences Neutral vs Cool White?

    Unless both leds have the exact same forward voltage you can not compare them when run from a battery. In general the neutral ones are less efficient and thus run hotter. Are the stars the same?
  9. pyro

    Lupine piko led swap

    The piko is not modded that often, simply because there are not so many of them around. Lupine says the piko is not user upgradeable like the other models, seems to be crwoded inside the kittle bugger. I have one and am happy with the tint, but would wish a bigger hotspot, but i don't know any...
  10. pyro

    Sold/Expired High efficient 5A/9A Buck Converter for SST-50, SST-90

    Is it necessary to bidge the pot connections or does it work without potentiometer?
  11. pyro

    Simple question, did seach, couldnt find answer.

    Depends on the Vf of the led and the type of batteries you use. On full eneloops maybe around 100 mAh, fresh alkalines slightly more, but not enough to justify the use of a high power led. If you want it cheap you can use three AAs and a resistor or a Li-Ion cell + resistor. With two AAs you...
  12. pyro

    Cigarette outlet to 12v hobby charger

    cheapest and smallest would be to rework the cigarette lighter of your car....
  13. pyro

    a hole in my HDS???

    If the threads are covered with grease they are be somewhat airtight. The small hole allows the air to escape fom the light if it is screwed together. The trapped air would build up pressure and cause the tailcap to bulge out, especially if the already pressurized air expands if the whole light...
  14. pyro

    Sold/Expired High efficient 5A/9A Buck Converter for SST-50, SST-90

    First post has the datasheet linked. If your Battery is >2v over your Led voltage you can drive up to 4 Leds in series.
  15. pyro

    Rifle mounted light

    If you need the enforcer at full power the listed lights wont be enough. Why don`t you replace the battery pack with a Li-Ion one?
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