I have a bathroom full of G10 light bulbs. There is also a vent which takes a GU5 bulb. Earlier they were all warm white and all the bulbs looked the same. I changed the G10s to cool white and expected the GU5 to match them but it doesn't. It's not bad but it's just not quite cool enough. That apart it seems to be a good bulb, although it's far too early to tell.