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

Other Types of Lights Non-LED Lanterns, Incandescent, and HID Lights
41

I’m looking again at the photos of the 75kW bulb… I think it’s actually only two connections (brass posts at the base) and the rest of the bits are simply supports (middle lower support is into glass)… so although there are 4 filiments, it looks like they’re in series?

2.4mil lumens divided by 75kw = 32lm/W, which isn’t great but not actually that terrible, especially for the time it was produced.

42

@gravelmonkey Yeah, it’s likely that the bulb and filament were running so hot that it allowed for higher efficiency.

Remember, the hotter the filament, the more efficient the light conversion.

43

I wonder which flashlight will be suitable to run this bulb in!

44

I saw one on Amazon that claimed 99,999,000lm, and only takes 3 AAAs!

I mean, it must be true, no?