4K HD Wallpaper: Generating Power Station
The Salt River Project-Navajo Generating Station, Arizona, USA can be seen in this 4K picture and downloaded under CC By license from Alex's courtesy. Optimized for fit on desktop backgrounds and homescreen phones.
Widescreen Desktop / Macbook: 2560x1600 (fits on: 1920x1200, 1440x900, 1280x800)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x1536 (compatible with almost all tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many smartphones)