Light and Darkness
4K HD Wallpaper: Light and Darkness
Long exposure photography took by Oliver Liegmann and available from his courtesy under CC By license. Check the image at full size and if you like download from here optimized for apply in desktop backgrounds and lock screen phones.
Widescreen Desktop / Macbook (Retina): 2880x1800 (fits on: 2560x1600, 1920x1200, 1440x900)
High Definition HD 1080p: 1920x1080 (fits on: 1600x900, 1366x768, 1280x720)
Samsung Galaxy Tab & iPad: 2048x2048 (compatible with many tablets)
HTC, Samsung Galaxy & iPhone: 1080x1920 (compatible with many phones)