75,000 watt, 2.4 million lumens incandescent light bulb!

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Westie
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BLF: Yeah but is it high CRI? I don’t want it if it’s over 5000k. How’s the tint?

Lightbringer
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I heard they made the base a left-hand thread, so no one could steal it and use it at home.

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RobertB
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That bulb was definitely used. You can see the frame darkened at the top, and the glass as well.

Firelight2
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The bulb was powered on.

This link from Cleveland Historical includes a photo taken in 1954 showing it powered up. It’s obviously not running at full power though. Or their definition of “75,000” watts isn’t what I’d expect.

wle
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Firelight2 wrote:
The bulb was powered on.

This link from Cleveland Historical includes a photo taken in 1954 showing it powered up. It’s obviously not running at full power though. Or their definition of “75,000” watts isn’t what I’d expect.

yeah it is hardly even as bright as the overhead lights

wle

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Mark M
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If you look closely at the middle legs of the mount underneath the bulb you can see two heavy gauge wires leading into the bulb. But yes I agree it was used. I bet it still works just fine too.

MoreHiCRILumens
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Westie wrote:
BLF: Yeah but is it high CRI? I don’t want it if it’s over 5000k. How’s the tint?

Someone has to ask the important questions. After all we wanna see that technology goes forward and not backward.

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