not recommendable! completely different brightness.

Never imagined the ten bulbs ordered to a lamp to it. Actually thought because you can not go wrong, after all, the product has 4.4 stars. My lamp has two versions - directly next to each other. So I pocketed two of bulbs and was surprised that one of them is many times weaker lit than the other (was more of a glow for a light, rather than 10W 40W). At first I was afraid that the lamp itself is to blame, but the problem clearly lies with these bulbs. Have some tried until I found two that are light about the same. Some of them are so dark that they are not usable. Very annoying. Had cheaper bulbs bought, but the problem with the brightness is new to me (so far the problem was more the begrenzet durability). An inquiry offered brought me a just a reference to the AMAZON service.
How can so just come on 4.4 stars a scrap?