As others have noted with this particular light it's not 300w. The attached photo shows that when connected to a 13.26v power supply the output is 38.5W. That's a far cry from the advertised 300 watts. It's bright enough, bright enough for my intended use, I just wish these things were advertised with accurate specs. Outside the photo frame was a multimeter, which also confirmed that the voltage and current readings were correct.
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