Anticipation I said, I am in terms of light color certainly more critical than others, but if 'Warm White' it says, I expect a similar light color as halogen usual. For me, LED lamps have long been taboo, since I had never seen one in which the light color was similar to 'hot', as with halogen - even though it was promised. But now I have found for outdoor LED spotlights that my previous 20W low-voltage halogen spots inferior both in color and in the dispersion in nothing. This inspired I try now especially indoors some halogen lamps (at least those who are not dimmed) to replace. I bought from this sebson here and two 3.8W E14 lamps and am now back on the floor. The offered G4 is anything but 'warm white' - and also the luminosity comes from my feeling not match the old 20W halogen lamps. Since I have also with 3.8W bulbs issues (series variance in color), which was probably my last purchase sebson.
I'm sure that there are good G4 LEDs, both in color and in brightness - you just have to find them. So if anyone can recommend a suitable replacement, I'm open-minded. This product here, I can not recommend unfortunately.