Cooling fins, overheating, polarity, and over-voltage protection

Why are cooling fins of LED work lights so different in size?

The LEDs on the PCB in the work light generate a lot of heat, so the cooling fin’s purpose is to dissipate the heat generated. To do this they must be of the correct length so that the heat can be dissipated properly. In general, LED work lights with high lumen output require longer cooling fins than LED work lights with a very low lumen output. This is why TYRI designs cooling fins that correspond to the height of the lumen output.

With this in mind, an LED work light with a very high lumen output, but with very short cooling fins is a technical no-go! The heat that is generated by a high lumen output cannot be dissipated properly via very flat cooling fins. When the heat dissipation is insufficient, the high lumen output will not be achieved.

What happens if the heat dissipation through the cooling fins is hindered?

If a LED work light is integrated in a machine design, it is essential that the heat dissipation through the cooling fins is not hindered by too little open space in the machine. If the heat from the cooling fins cannot dissipate into open air, the lumen output decreases and, if the LED work light does not have an overheating protection, can damage the light.

TYRI LED work lights are equipped with an overheating protection which lowers the lumen output automatically when the heat in the work light gets too high. As soon as the temperature is back to normal again, the full lumen output will be reached automatically.

Why should a LED work light have an over-voltage protection?

Over-voltage protection protects a LED work light from too high electrical voltages. Over-voltage can be caused by capacitive or inductive coupling of other electrical systems as well as through electrostatic discharge (ESD).

Why should a LED work light have a polarity protection?

Polarity protection guards against improper polarity, meaning the plus and minus connections have been installed incorrectly. If a LED work light has a polarity protection there will be no damage due to the mix-up.

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