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1000W xenon arc lamp built into DIY searchlight housing

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Uploaded by on Oct 13, 2010

I finally finished the 1000W xenon searchlight project that I started earlier this year. The power supply is a slightly modified arc welder coupled with an automotive ignition coil for the starting pulse.

http://benkrasnow.blogspot.com/2010/10/diy-searchlight-housing-for-1000w-xeno...

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Uploader Comments (bkraz333)

  • Tanks for the information, but, could i use common rectifiers, such bridge rectifiers about 30 amps to drive this bulb? Something like that i´ll do with flash xenon bulbs, which have three electrodes. What diodes have you used for this?

  • @emercito The xenon arc lamp requires a constant-current power supply. Simple rectifiers will not provide the current-limiting that is necessary to operate the lamp. You need something very similar to an arc or TIG welder to provide high-current with careful regulation.

    The starting circuit is based off an automotive ignition coil, which is powered from 120VAC via a current-limiting capacitor. The high voltage spikes are coupled into the lamp wiring to provide a starting pulse.

  • are the keep alive electrode coil near the bulb? I supposed it is, but i wanna see how did you done this

  • @emercito The bulb only has two electrodes. The high voltage pulse is coupled into the main wiring by the transformer that I wound (with green wire in the lower right corner of the plastic housing). Once the arc is initiated, only 20V is necessary to sustain it.

Top Comments

  • please, please, please DO A BAT SIGNAL

  • Where did you find the high wattage xenon arc lamp

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  • @saddork As far as I know ferrite is the name that scientists and metallurgists gave to the body centered cubic phase of iron and it's alloys. It can be a mix of many materials. A ferrite is a substance made up of metal that has chemically reacted with iron oxide. Different mixtures, densities of metals and iron oxide makes ferrite. We know they are used as transformers, chokes and things like magnets. I think they have to be able to be magnetised to be called ferrite. I love your power supply.

  • Sorry by insistence, i can see in this video an oscillator attached on this start coil. Is that true? I´m thirsty for this schemmatic, about this search light

  • Show us how did you conect the automotive coil onto this circuit

  • Wow, that's very good, congrats

  • That's really impressive, never bin it and whoever says its rubbish is wrong.

  • you can do a bbq with this :D

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