These bulbs are rated at 800 lumens, more than double my output (325 lumens). Based on what I can only tell from observations, they appear to be twice as bright or brighter. They are larger than most candelabra, but I think it was necessary to get extra lumens compared to others. I personally like the look of the larger bulb. I also like that the glass goes all the way to the bottom instead of having a white bottom in front of the bottom. I think it looks better than with a white base. Only time will tell if they are worth the higher price compared to others. If they really do last for years I would say this is indeed a 5 star product. while i use. If any of the bulbs die prematurely I will come back to update them. For reference, I'm using five of these lightbulbs in a 13' x 13' office space. Previous 325 lumen lights were good for something like a bedroom but not enough for an office. There are great sizes for the office.
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