These "mini-bulb" (smallest bulb with E27), it has a peak luminosity. Wanted a short bulb so they do not protrude below the lampshade edge too far and hidden, but nevertheless a good illumination for our dining table. I do have 5 pcs. Of it because the lamp has 5 versions, as well as 2 would loose enough. Can also keep up with huge 400 lumen bulbs. Real Top!