I'd previously replaced the warm white halogen bulbs in the interior of my vehicle with cool white LEDs. The ones for the map lights started to flicker after 2 years and got rather annoying. I bought these lights to replace them. These look to be better built and include a heat sink which the others lacked. I think this will go a long way towards helping them last longer. There were easy to install, clipped into the holder without any issues. These are of a similar color temperature to the other LEDs, but are much brighter than the ones they are replacing. They really light up the interior of the car at night. Overall, I'm happy with the lights and only time will tell how durable they are in the long run.
Old bulb is the top one in the photo. You can see the brightness difference in one photo and the other shows the amount of light with both bulbs replaced.