gaudy bright and a little grumpy

Had ordered me only one and then another 3 of these lamps. The perceived light output is all for my eye with a 75W incandescent equivalent. The light color is clearly colder, but without green or blue tint.
The only negative point: - Barely hanging in a pendant lamp, standing in a light little horizontally in a wall lamp disturbing significantly depending on installation position you can hear a hum. Also depends on the used copy of the LED lamp in spite of the same type. Conclusion: Perfect bright and economical Flurlicht!