The LEDs light up even for perfectly.
I have 2 of them in my bathroom cabinet. I would say that the old halogen bulbs in no way inferior in terms of brightness.
The light itself is just slightly different than normal light bulbs.
They are also only lukewarm - the old halogen bulbs could not berührene from heat.
I can not say anything yet about durability - but I hope the keep the already very long.
My old halogen bulbs I changed 2x a year.
All in all I can recommend the LEDs genuine.