Cheap LEDs get hot
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Technically all LEDs get hot. The housings are designed to dissipate that heat. Their inability to do so reduces output, which is why 99% of LED advertised output ratings are complete BS.
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Yes and no. All LEDs create heat. Some do a better job of dissipating heat and as a result are cooler. Regardless, it shouldn't turn into a charred mess like that one example.
Better LEDs have a driver to control the current.
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