+ Battery mode (battery would still be better, but so the annoying Kabelkram is ever not there)
+ For clamping on books, on the bed frame, laptop, wherever
+ Large area, which is illuminated, large 'light surface'
-to difficult
-too large
-fällt accordingly to small, somewhat thinner books always down
-The light is not warm, more like a cold light doctor.
All in all: 3 stars.