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The 10,000 watt halogen studio bulb had air in the envelope and it was not usable, it began to smoke inside on low power up.
The filament almost resembling garage door springs were still intact, we could not resist a crazy experiment that has not been done before that we are aware of.
The lamp was filled with water by breaking off the gas filling pinch seal on the top then filling from the tap.
The filament in these lamps burns at 3200 degrees, we were sure it would boil water.
If the water filled lamp had been put on 240 volts it would have ruptured instantly, so we used just 30 volts going into the lamp, with a few amps of course because the filament has a much lower resistance when cold thus it will draw more current.
It boiled the water rather well, pressure was building in the lamp, steam was almost being ejected so hard it was nearing the ceiling. The lamp was being controlled by a variable voltage transformer, the water would be on a nice simmer, and one turn of the voltage dial, the water in the lamp turns to a boiling fury.