The best light

For me, the LED lamps from Philips are always first choice. The color rendering and the color tone can convince just as the radiation. The older types of lamps from Philips were very expensive and not energy efficient, as evidenced in significant warming.
The newer Corepro is as a step in the right direction! Inexpensive and much more efficient.
The warm tone (2700K) is pleasant, but tends already towards yellow, which possibly is not all perfect.