Guy Puts A 20,000 Watt Light Bulb To Test And The Result Is Blinding

by : Tomi Adebayo on : 25 Jul 2016 14:21
20,000 Watt Light Bulb
20,000 Watt Light Bulb

UK electrician Photonicinduction put a 20,000 watt light bulb to the test and the result is blinding – but warning, do not try this at home!

To put how powerful this light bulb is into context, a typical incandescent light bulb in your home has a power consumption of about 60 watts.


Fortunately for us, he filmed the whole test so we could see it for ourselves:

This kind of light bulb would normally be used on a movie set to replicate daylight and ensure production can continue at night.

When switched on, the light fills the room or the location, illuminating any darkness in its way – you wouldn’t want to use it without wearing some sort of safety goggles.

20,000 Watt Light Bulb
20,000 Watt Light Bulb

When UK electrician Photonicinduction took the 20kW Halogen light bulb out of its packaging, you can see the size of its filaments – they look like the sort of springs you’d find in a spring mattress, compared to the regular filaments you see in a typical light bulb.

Photonicinduction explains at the beginning of the video that a typical characteristic of an incandescent lamp is that it doesn’t just glow as you flip the switch – on the contrary, the filament starts off cold, taking on loads of amps and when it begins to glow red slightly, the resistance increases and the cold normalizes, then you begin to see the amp decrease.


At this stage, it begins to emit heat, and I still don’t know how he was in that room without sweating.

I can’t even begin to imagine how much his electricity bill will be this month after that test!

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Tomi Adebayo

I write about all things tech!

Topics: Science


  1. Gizmodo

    Seeing a 20,000 Watt Light Bulb Light Up Is Totally Blinding