Features: Programmable LED design: supports customizable lighting effects, increasing the personalization of aircraft appearance. color lighting: provides multiple color option to increase visual effects and recognition. Arm installation: suitable for the arm installation of FPV traversing drones, simple and beautiful. High brightness light strips: using 2812 LED beads, high brightness and full color. Lightweight and flexible: Lightweight design that does not add too much weight and does not affect flight performances. Easy to install and operate: Simple installation steps, convenient for users to install and debug on their own. Specifications: Material: PCB Size: about 37x6.5x4.3mm/1.46x0.26x1.7inch Quantity: 4pcs/set Package Includes: 4Pcs/set 2812 Programmable LED Arm Light Strips note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.