Flickering Neon "OPEN" Sign

A glowing pink neon sign that reads "OPEN" in a looping cursive script, mounted on a dark red brick wall at night, photorealistic, with a soft glow and reflections on the bricks. The sign flickers: it dims, cuts out for one frame, then buzzes back to full brightness. The letters, the wall and the framing stay exactly the same in every frame; only the light intensity changes. Camera still. Seamless loop.