ViewSonic's VX2453mh-LED features an LED backlight 24" (23.6" viewable) ultra-thin widescreen monitor with up to 40% energy savings compared to a regular 24" monitor. Environmentally friendly mercury free VX2453mh-LED offers Full HD 1920 x 1080 resolution, two HDMI inputs, external power supply, 2ms response time, 30,000,000:1 MEGA dynamic contrast ratio, book stand option and SRS Premium Sound. Ideal for both home and office with a glossy black finish. The aspect ratio adjustment feature automatically senses the input single and will not stretch a 4:3 signal but instead will position the image in the middle of the screen with side bars. A 3 year warranty, the industry's best pixel performance policy, energy saving Eco-mode and Windows 7 certification, make VX2453mh-LED a great long term investment.