LED, great electronic component

Pleasantly surprised by these bulbs, a nice cool white, well balanced, it has neither the blue nor yellow.
The light output of 3.5 Watts seems equivalent to a bulb of 40 to 50 Watts classic, although the LED light "electronic" and the light filament "electric" is quite different.
Almost no heating, although less fragile glass bulb quune, consumes very little, modern, here are the main benefits.

Listed reliability, durability, my purchase is too recent to talk but if a concern arises, I would return here to talk about.