It's always the same story with LED!

Note 1: the bulbs are huge (even more than other references) and do not suit all fixtures.
Note 2: warm white is actually relatively cold! Nothing to do with the spectrum of a halogen.
Note 3: they seem robust and light is particularly homogeneous when it is a recurring fault on many models.
Note 4: light the intensity is less than 40 W halogen my preceding
To install knowingly.