It lights up very well, but out of the 8, only one fits the sockets of the living room lamp.

I have two of these in my bathroom and they make it super bright. However, I am giving them three stars for the following two reasons:
a) They get quite hot for LED lights to the point where I couldn't touch the protective glass around each bulb after they had been on for a while.
b) Both of them started flickering almost at the same time (with a 3-day difference) after about 7 months, so I had to replace them.

Bright lights, but because of these two issues I described, I will not buy them again.

I cannot evaluate their brightness since they were purchased to be used in a fixture with smoked glass. They were the only ones that fit in terms of length to replace LED filament bulbs, where the low brightness of those LEDs did not cover me.
One star less is due to the flickering they produce when viewed through a mobile screen, while another type of LED ceiling light in my space does not flicker like these do.
The phenomenon is not visible to the naked eye, but it can tire some people who are more sensitive to light flickering.
However, they are recommended as replacements for LED filament bulbs with E27 base and G95 shape, as they were the only ones I found in the same length and fit to provide more light.
Finally, I would say that the light, although not cool to my eyes, may be slightly above 4000K as it appeared completely white without the sensation of a faint yellow-white.

I have had them for three months now on the ceiling fixture of the kitchen, which did not have good natural light. With two of them, the kitchen becomes day.