EcoSmart 6.5 ft. RGBW Color Changing Dimmable Rechargeable Battery Operated LED Strip

Home Depot

Product category (LED Strip Light) matches exactly, Color-changing capability matches the blue/purple glow in the frame, Flexible design is consistent with the light conforming to the arch, Battery-operated feature aligns with the DIY setup in the frame, Visual appearance of the LED strip and emitted light are highly consistent

HIKENRI 1M/3.3ft Battery Powered LED Strip Lights

eBay - tzephan-50

Product category (LED Strip Light) matches exactly, Color-changing capability matches the blue/purple glow in the frame, Flexible design is consistent with the light conforming to the arch, Battery-powered feature aligns with the DIY setup in the frame, Visual appearance of the LED strip and emitted light are highly consistent