Good product, notice to improve

Very good monitor with a resolution white superbe.L'écran flangeless is very pretty. Three criticisms, however,
- Delivery, assembly, screen gave excessive downward tilt, impossible to solve. I had to remove stand to loosen the tilt adjustment screws.
- Not a word in the Notes on Blue Light Filter system, such as the optimal setting or adjustment council, answer on the net!
- ECO mode, choose that standard, optimize or keep? Nothing is said! again, answer on the net!