An optional timer would be good.
Otherwise, a very good and relevant bright light bulb (extra features and a larger size vs. TL50 are a value-for-money addition), but after a couple of weeks of use, it didn’t go on at all anymore. Put that song in exchange, and if the new one works flawlessly happy even for a few winters, it will be rated 5 stars.
Edit: the new song has worked flawlessly so far.
Good and neat looking lamp, brightness adjustment feature good.