ah, missed that part…
I do not know of any LED bulbs that change color temperature and are dimmable
sounds like you found one though… your option #3…
I hope it works well for you.
yes, some apps ask for location… it might be because different parts of the world use different Voltages… not sure… but… dont let that question stop you from proceeding… since you found the features you were looking for…
ps, the Wiz site says:
Voltage
220-240 V
which I think is what you use in Germany…
fwiw, I bought an Opple to measure the Flicker… it is one of the factors in LED lights that varies between products, besides the ones youre interested in, such as CRI…
Here are some Photo Grade, Low Flicker bulbs (available in daylight white)… but they are not dimmable, and do not change color temp… you would have to just choose one and use it as is… The CRI and Flicker might be better than the Wiz… I dont know… I would use the Opple to measure and compare