Recent content by Flummo

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    Beamshots Osram Ministar 20W?

    Looking for beamshots of this little critter, I've seen some of 35/50W but those are 30 degrees and 20W is only 20 degrees. :candle:
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    BAN HID headlights, FINE users, JAIL converters!

    HID converting low beam is illegal here in Sweden, and should not (but does sometimes) get past the annual safety inspection our cars have to go through. Most people remove the kits during the inspection, and put them back on after... Getting pulled over by the police for an inspection by the...
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    LED replacement for my motorcycle headlight

    I have had similar plans for a few bikes, but I have not come up with a good way to mimic the E-codes low beam beampattern. The ordinary "round spot" of light from LEDs just isn't an acceptable low beam for me. As a compromise I am keeping the standard headlight on one bike (12V 45/40W Ba20d)...
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    Cree XP-E available!

    For us without any idea about those leds, in what areas are those better than, say, a XR-E Q5 ? My memory may be bad, but 100-107lm @ 350mA sounds lower.
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    Need Help : Wnat to MOD Car HID for bike.

    Your assumptions are not correct. :poke: The ballast is often rated at 3.2A @ 13.2V, or 42W at that voltage. 4 2000mAh batteries connected in series will have 2000mAh total too, but 4 times the voltage. (In paralell you gett 8000mAh but still 3.6V or what each cell has.)
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    Old JEAB flashlights destined for a life in new light

    No pics yet, the measurements were taken with the LED handheld without heatsink, so there is only a limited time I can keep it running - and there isn't much point in taking pics of loose parts on the bench. Moving the LED forward is unfortuneately impossible, the star is bigger than the hole...
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    Old JEAB flashlights destined for a life in new light

    I got the last stuff a few days ago and did some testing today. The original bulb managed to produce 130-160 lux at about 1,5-2m distance. (Cheap meter and I doubt the accuracy, but good enough for a comparison I think.) With the Cree Q5 @ 800mA held behind the lens in the position that gave...
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    Old JEAB flashlights destined for a life in new light

    A driver will be used. Actually, I did order some at the same time as the LEDs, but the drivers appeared to be backordered for a month. Today when i checked the order status all items were ready and status showed as "packaging". Excellent news! :grin2: And for cooling, the LED will either sit on...
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    Old JEAB flashlights destined for a life in new light

    Three old Swedish made JEAB flashlights I've got, I do not know how old they are but they are for sure alot older than me (26). The blue one has been here for over ten years, the other two I bought today. They have probably been left in the box for decades since they were new, and they are in...
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    So Cal Get Together Saturday March 8th

    Simple. Start building the upgraded version! :devil: Nice pics, guys!
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    Cooling emitters

    No, no real hurry, actually I was told that Cree stars and optics were coming in soon so I decided to wait for that instead of messing with emitters. More light than the available options, simpler cooling, simply better... So for now the problem is solved, and I know how to handle emitters...
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    What's the difference with VDC vs VAC switches?

    No, there is no formula, or at least none for us mortals. Another problem with DC is that the small arc you get every time you switch it of moves a little metal from one contact point to the other. Very small amounts ofcourse, but with the same polarity the metal moves the same way all the...
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    lm/w for ordinary cheap 5mm leds?

    Okay, thanks!
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    lm/w for ordinary cheap 5mm leds?

    Does anyone know how good the cheap chinese 5mm leds are when it comes to lm/w? This kind of leds are usually rated in cd/mcd only, and for an amateur that is hard to compare to something rated in lumen.
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    Cooling emitters

    Not decided on LED yet. Luxeon, luxeon K2, SSC without any data on wich type, but with lower lumen rating than the P4 = assuming P3... (This is the kind of trouble you get when you try to shop locally!:mecry:) The chassis, or rather the piece of aluminium the emitter would be glued to, will...
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