Review on Vintage T10 LED Filament Bulbs: Warm 2200K Light, 4W Amber Colored, Dimmable, Ideal For Desk Lamps And Pendant Displays by Victor Hurvitz

They are well packaged. If you could say a bulb is classy looking, this is. LOL. If you have them on a dimmer switch that can dim LED bulbs, they work perfectly. You need a LED dimmer. Regular dimmer will flicker. There is no flicker. This is a bright white that makes my glass paperweights pop! When dimmed it isn't as bright and harsh. I love both the bright white and the warm white. Can't actually decide which I like better.I also have the warm white. Looks like a warm incandescent light. Not too yellow not too white. They work just as well. Very impressed. I can't say for longevity but I have probably burned them for 100 hours now.