Lenovo ThinkVision 2580AF1 18.5-Inch LCD Monitor 18.5-Inch Monitor which adopts the latest W-LED backlight technology and provides great display quality and saves power consumption up to 40% Wide monitor provides 1366 x 768 resolution & improves efficiency with easy viewing of multiple applications Green features: Mercury-free by adopting white LED backlights, arsenic-free glass, and meeting the latest Energy-Star standard and being TCO Displays 5.2 compliant