+++ Has the size / dimensions of a normal light bulb.
+++ Virtually no heat.
Dim +++++ works without problems, no flickering etc.
Tip: There are at Osram a list of compatible dimmers.
Have a Kopp 8078. If everything goes without problems.
+++++ Very beautiful color with a slight yellow tinge - like the light bulb
+++++ Super bright light. More than a 60W bulb. Replaces 60 Watt completely.
+++++ Dimmer not buzzing and the bulbs do not hum. Was the previous dimmer otherwise.
Conclusion: If the lamp keeps the promised 20 years then the purchase was worth.
Addendum: During a cold start of the lamp light on delay of approximately 1-2 seconds. But does not interfere.