Brightness:
The brightness of the 50W bulb, the LEDs come on not quite, because they still have a bright spot in the middle. The illumination is the same, if not better. The LEDs, however, are much brighter than the 35 watts bulbs. Overall, I would compare it to ca 45Watt.
Illumination:
The illumination is super. Much more evenly than conventional bulbs. The angle of 120 ° is also achieved here, not only 60 °, as in the shabby Phillips equivalent.
Light:
The light I like also.
Can not understand why people complain here about a slight yellow tinge, as is 3000K and be taken. Eben a small tick colder than the orange bulbs. But you get to within 10 minutes of it.
Lifetime:
For life I can not say much, except that function after a month still 5 of 5 what comparable products is not always the case.
Overall a very good product