Designed for LEGO 75349 Captain Rex helmet - Compatible with LEGO 75349 Captain Rex helmet. All LEDs deliver a uniform light pattern, and the cable connectors fit neatly together. Easy installation with professional guidance - Step-by-step video installation instructions provided by our experienced light build team to help you install quickly and reliably. Creative DIY lighting to enhance your model - Provides bright lighting to help you unwind and enjoy your display. Perfect for upgrading your Captain Rex helmet and adding a more advanced, personalized touch to your model. Flexible power options - The package includes a USB cable and battery box. The LED lights compatible with LEGO 75349 can be powered by a power bank, wall charger, USB socket, laptop, or any USB port device. You can also use it with a battery (battery not included). Safety and reliability - Made with high-quality copper cables that include heat and burn protection. The setup uses 5V low voltage for a safer experience and longer operating time. Use scenarios - Night-time display: brighten your Captain Rex helmet on a shelf or display case for a striking, ready-to-show centerpiece. - Cosplay or photography: provide consistent illumination to enhance photos or a costumed presentation. - Gift for LEGO enthusiasts: a practical upgrade for fans who enjoy customizing and detailing their builds.