Crash test of electric lamps at low temperatures (up to -145 degrees Celsius)

In the laboratory of the GTV channel, we tested the electric lamps at low temperatures and today completed the installation of the plot. For testing, we had a temperature range from 0 ° C to -145 ° C and it was achieved by feeding liquid and gaseous nitrogen into the heat chamber. Regulated temperature by passing nitrogen through the evaporator. This is something like a radiator, but unlike the classical purpose, ours did not cool, but heated the gas passing through it at room temperature.

The entire test can be viewed on the video. The video is the most obvious.


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The following lamps were selected for testing.

• LED lamp;
• halogen lamp;
• incandescent lamp;
• fluorescent lamp (popularly referred to as "energy saving").

The test results were recorded in a table.

Lamps give off heat

During the experiment, we gave the lamps to equalize their temperature with the temperature inside the box. To do this, we periodically turned them off for a while.



Of all the electric lamps, the incandescent lamp was the most intensely heated, and behind it was a halogen lamp. As expected, the LED lamp almost did not emit heat. Well, kerosene, which we took just for the beauty of the picture, was the leader in heating.

Testing process

The test began with a minus temperature of -5 ° C. All lamps worked properly and did not give any signs of blues.



At -30 ° C, it became apparent that something was wrong with the fluorescent lamp. She lost in brightness and began to shine a yellowish light.



Minus 50 celsius finally knocked the ground from under the feet of an energy-saving lamp: it dimmed thoroughly and the light had already become a red light.



Well, the temperature at -95 ° C and shutdown for 3 minutes turned out to be unbearable for fluorescent and LED lamps. The latter could not even start, apparently summed up the startup scheme.



On the seemingly final line at -130 ° C, after another shutdown, the filament in the halogen lamp burned out.



And as you can see, the temperature in -145 degrees Celsius incandescent lamp confidently withstands.

Test completed

After all the lamps were removed from the heat chamber to room temperature, condensate began to precipitate on them. But this did not break the spirit of the “light bulb of Ilyich”. But the fluorescent lamp after a few minutes in the heat earned and its color temperature began to return to normal again.



The following photo shows that the halogen lamp really damaged the filament.



Everyone can draw conclusions for himself, and we only remembered one wisdom: "The old horse will not spoil the furrow."

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