These bulbs fit the main purpose I bought. Especially as a brighter night light than a typical 4 or 7 watt incandescent bulb. Unfortunately they don't last very long. I have tested almost 60% of the lamps since I received them in September 2019. The only mitigating factor is that they are usually included almost 100% of the time. The compensation for this factor is that they don't see the cyclic frequency (on/off cycles). The cycle is strongest for the filament when voltage is applied to it. In any case, I'll probably buy them again as they're not the usual (off the shelf) size/performance.