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Police and Search & Rescue helicopters often carry immensly powerfull spotlights. I know of some that are rated at around 50 million candlepower, although they probably arent the most powerfull ever made. I dont know the conversion factor for candlepower-watts so you might want to look that up. I suppose you could class lasers as a type of light bulb. They are generally rated in KiloWatts or MegaWatts (hundreds or thousands of Watts). Some of the most powerfull lasers are used by the military in targeting systems. They often have ranges of around 10 miles. The most powerfull conventional domestic lightbulb I know of is 250Watts.

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16y ago

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