The Think Vision L2251x wide is Lenovos greenest & most ergonomic monitor ever & the worlds first TCO certified edge monitor at the cutting edge of environmental responsibility & usability. Pioneering the use of the latest recycling technologies, 30% of the total weight of all plastics in the product consists of post-consumer content plastic resins. The product also has 92% recycled plastics in packaging materials, a protective bag that is reusable, in addition to mercury-free, arsenic-free glass & low halogen. It is 33% more energy efficient than conventional monitors (29.7% more efficient than Energy Star 5.0 standard), has Ambient Light Sensor & Proximity Sensor that further conserves energy, & has an integrated webcam that helps boosts productivity saving traveling time & expense. The L2251x wide is a perfect choice for environmentally-conscious users seeking cutting edge productivity boost. The incorporated Think Vantage design enhances usability & makes the monitor easy to use. As defined by EPEAT verification criteria for calculation of post-consumer recycled content. Many plastic parts used in this product consists of (by weight) 65% post-consumer content from sources like home appliances, computers, vehicles, & office equipment & 20% post-industrial content.