Works great. Comes with nice universal power source. Also can operate on batteries.        The Tundra Compact 5" x 7" Model 837C Portable Light Box Viewing Screen is a convenient and portable device for reviewing photos and images. With the included power cord, you can easily power up the viewing screen anywhere, making it ideal for on-the-go use. The compact size and sleek design make it easy to transport and store, while the Tundra brand ensures reliability and quality. Perfect for photographers and image enthusiasts who need a versatile and user-friendly viewing screen for their photography needs. 4A4 gw