After my old 50 watt spotlights have again given up the ghost, replacement was needed. I had already had good experiences with the 4.5 Watt GU 10 LED lamps from Osram, this a bit but I was too dark. So I thought I'd try the 6.5 Watt GU 10 variant. And I was not disappointed - the brightness is convincing, the old 50-watt bulbs, I no longer miss any event. Likewise, the previous speaker, I can confirm a humming and a short Ansschaltverzögerung. The hum I have however only noticed after I read the previous review. This is tolerable in my ears - if you have kids anyway you are there perhaps less sensitive ;-)
All in all a buy recommendation - a lot of light for little money!