Bason USB LED TV Bias Lighting Backlight Strip for 30 to 40 Inch Flat HDTV 20 Color Options Sync Switch On/Off with TV Dimmable Remote Control - To enhance tv watching and help eliminate eye strain by attaching LED strip behind each side of TV back (30~ 40 inches). Please measure your tv side to order the one which fit best, the length of 4 LED strips for reference, 11.21ft, 11.08ft, 22.10ft. - Hassle-free to find your favourite color and brightness by the remote, BASON TV bias lighting provides 16 static colors, 4 dynamic modes, and 8 levels of brightness to satisfy different taste. - BASON TV backlight powered by TV USB port, can be turned on/off synchronously with most TV models. As some particular TV USB port can still supply power current after TV shut off, please turn off the TV lighting via provided remote in this situation. - The strong adhesive foam tape with "BASON" mark, guarantees LED strips will not fall down if you keep the mounting surface free from dust before hooking up. - Buy with confidence, we offer 30 days money back guarantee and 1 year warranty. Please send email to sales25@basonlighting.com, technical support and replacement service available within 24hrs. Read below "Product description" to find more useful information.