The ALTELE colour changing USB powered LED TV backlight light bulb kit, by PowerMaster, is a simple and affordable way create bias lighting to enhance your TV viewing experience or PC gaming immersion.Positioning light behind the viewing surface raises the level of ambient light in your field of vision, addressing the imbalance between light and dark that existed before - alleviating your eyes workload and helping prevent headaches, dry eyes, ocular migraines and visionary problems that can accompany this situation.A USB port is all you need to power the strip (most modern TVs and PC monitors have them, so powering is easy) and using your TV\'s USB port means that the strip with turn off when you turn your TV while also removing the need to trail wires to the nearest plug socket - especially useful for wall mounted TVs. To install, simply cut the LED strip to length and then mounting using the 3M sticky tape backing - it\'s that easy.The kit comes complete with everything you need - 2 x 50cm flexible LED striplights, a USB power connector with 3.15m leading wire and a remote control, allowing you to brighten or dim, change colour and change function between static, flash, strobe, fade and smooth mode.Static, Flash, Strobe, Fade and Smooth mode. Assorted Fixed Colours. IP65 rated. 2 x 50cm flexible LED striplights. USB Powered. 3.15 metre leading wire.