HAVELLS presents innovative retrofit solutions for outdoor signs, featuring the Generation 3 Double Side LED Sign Tube equipped with a special lens designed for slim cabinets and menu boards. The patented technology makes retrofitting any sign, regardless of size, a seamless process that takes less than 30 minutes. Each retrofit kit offers super bright and efficient LED illumination, with light output exceeding 700lm per foot while significantly reducing energy consumption and eliminating maintenance needs. Installation is straightforward and maintenance-free, thanks to an internal power supply that eliminates the need for any external LED driver or ballast. The structure of these tubes is optimized for superior heat dissipation, resulting in lower luminous decay and a longer lifespan, and the double-sided circular tube ensures wide illumination, making it an ideal solution for pylons and monument signs. Models are available in a range of sizes to match existing fixtures and facilitate quick installation, and the products are backed by robust warranties and safety certifications including UL and RoHS. With IP65 weatherproof connectors and ability to connect up to 20 tubes in series, these LED sign tubes offer businesses bold brightness, unrivaled reliability, and energy savings—all in an easy and rapid upgrade package.