For a reasonable price you get with the product a good replacement for traditional 40W incandescent. By comparable size, the Star LED watches - at least for me - even in tightly dimensioned lamp sockets. The light color I find enjoyable. Other reviewers compare here with halogen lamps; I concur with this assessment. The deduction is available for the noticeable delay. Contrary to the description and also in opposition to the label on the lamp packaging ("Instant Light 0 s"), the lamp requires after turning about half a second for the start. No eternity, but simply too long for "Instant Light". Only if you turn on the lamp again immediately after turning off, it will start immediately. I can at this bulb not notice any noise (hum, buzzing, ...), what I expect.