Recent content by Alexander47

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    What Resistor do i need for 10W 5V 1050mA led

    How should that help?
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    What Resistor do i need for 10W 5V 1050mA led

    Depends on your supply voltage. If the supply Voltage is 12V 12V - 5V(voltage of the LED) = 7V 7V / 1.05A = 6.6 Ohm Resistor has to be rated 7V*1.05A= 7.35W minimum. -> use a LED Driver, either buck or boost depending on your application. A resistor is not a good option for high power LEDs.
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    185Mcd 240W UHP Build

    Yeah 450W is correct for the XSW-30. Pure Xenon Lamps give a very good CRI and are immediately at full brightness after igniting, they are however quite inefficient. In the range of 25lm/Watt I believe. UHP / UltraHighPressure / UltraHighPerformance lamps only use mercury as far as I know. They...
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    185Mcd 240W UHP Build

    Here is a comparison between the AEG XSW-30 tank searchlight, the here discussed lamp and a similar one with 320W UHP and 220mm Fresenel.
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    185Mcd 240W UHP Build

    185 million candela = 185 million lux @ 1m Measured at 127m were 11500 lux.
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    Your Lawn Mower

    Im mowing with a cheap battery mower I bought for parts only. With two hoverboard wheels i converted it to RC control. Baterry used are 16S 10Ah Headway LiFePo4.
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    Master thread for disasters and generators.

    That is certainly true but it is no different on a dedicated genset. You have some amount of fuel consumption for just running the engine and then the additional consumption for added load. Idling modern car engines often enough does not consume more fuel idling than a carburetor genset. There...
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    Master thread for disasters and generators.

    A modern idling car engine is not that bad with the fuel consumption. Some 2 Liter engines might be able to run with only 0.16gal/hr of gasoline without load. This will be close to a 2000W gasoline generator with a carburetor. With load this will of course increase but thats the case for both...
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    185Mcd 240W UHP Build

    A zoomed in view: The bales are about 6m wide, total beam with is about twice that so 12m. With a distance of 1070m this gives a divergence of 0.65° The next day I checked the bales for damage, but they are still fine: While at that place I was looking for the next target. A wind turbine...
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    185Mcd 240W UHP Build

    Hello, I'm Alexander from Germany and new at the forum. For quite some time I was reading here without a Account. Im especially interested in spotlights and unusual equipment. Besides some custom HID builds I have a AEG XSW 30 Searchlight aswell. Here I wanted to present my latest build, it is...
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