Pros: Not really desirable for me, but when the bulbs are on they are blindingly bright! If using them in a non-shaded fixture, make sure they are away from eye level and close to the ceiling. The shape of the lamp is beautiful and large. Disadvantages: no amber warm color. Soft white even at low brightness levels. A significant increase in brightness at each dimming level, with no gradual increase. The filament is shorter than in the photo. They don't have the warm amber color they advertise. They're akin to your typical soft white lightbulb you grew up with. I tried them with a dimmer and even on the lowest setting they still looked pretty white and the brighter they were set the whiter they were. Each 10% increase in dimmer results in a significant increase from one setting to the next, so there is no gradual increase. I have no way of verifying the value of k, but I can almost guarantee it's at least 2700k. The strands also appear to be shorter and more concentrated at the top than advertised. I've included pictures of them in various settings in this review, a picture of my own Edison bulbs that they had to replace for comparison, and a closeup of the bulb so you can see the size of the filament. Otherwise they work well, but if you're looking for a fairly warm amber glow, look elsewhere. They return. Edit: Revain doesn't allow you to add photos or videos for some reason. The option is not available to anyone currently or probably in the last +6 weeks. I will update this review asap with the photos I mentioned.
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