I ordered these bulbs because they were advertised in connection with the stained glass lamp I ordered and haven't received yet.  Because they were advertised together I am assuming that these are the bulbs that are compatible with that lamp.  If they are, then you get more stars but, because the ad was not really clean about it, I still am not positive these are the matching bulbs.  I will see when the lamp gets here.  There are so many different bulbs these days that it is helpful when lamp ads are really clear about what exact bulb works for that lamp.