subdermal LED bar necklace, (internal LED glow:1.7), (embedded LEDs:1.7) forming a sleek, horizontal glowing line beneath the skin across the collarbone, soft light radiating from the center of the bar, (elegant linear light:1.6), (radiant horizontal light effect:1.5) mimicking a minimalist bar necklace, high-definition, (ultra-realistic skin texture:1.8), seamless light transitions beneath the skin, modern and minimalist, (worn jewelry:-1.8), (visible necklace:-1.8), (rigid design:-1.5), glowing bar pattern integrated seamlessly into the skin, timeless yet modern, perfect for both formal and casual settings