Instruct: Classify a given Amazon review as either positive or negative.
Query: Bulbs worked well until they fell apart...

These bulbs have the shape that we wanted and they produced enough light when we used them in our bathroom. We had three above each vanity installed upside-down and the light was bright enough for a lady's needs.Before they had a chance to burn out, the glass globe separated from the metal screw base on a few of them.Called Westinghouse and, after consulting their technician, they said that the bulbs are not designed for upside-down use in a bathroom due to the heat and humidity. No where on the box is this mentioned. We also have installed other bulbs above other vanities and have never had a separation problem.We are now going to try Phillips and GE bulbs and see if they work any better.I would recommend that you do the same.