The term "warm white" is, at least in my case, not applicable and the bulbs are In this respect can not be compared with the halogen version. You have a significant amount of green, making them useless for most applications. Can be used if they were in my opinion, at locations where the color temperature does not matter (Kellerabgaenge, chambers, etc.). Over the lifetime of the bulbs is still no statement possible, which will probably remain so, because I can not use.
