The light emission is concentrating euf a very small area, so that only noticeable look at the second, that this is LEDs.
The light output is considerably higher than with a halogen lamp with 20W, but the color is not directly comparable. Is a halogen lamp extremely warm white, cool white LED is more towards. However, blue coloring can not be seen.
The lamp is barely warm during operation.
An unpleasant flickering of the lamp is not visible.
Convinced of this bulb, I will provide some more lamps also with this.