LUMIS Halo: Beauty-Tech Device Ad

Premium dark product advertisement render, square 1:1, the fictional LUMIS Halo handheld light-therapy device floating above a glossy black glass surface in a dark studio, the device a smooth pebble-shaped wand of frosted white polymer with a brushed silver band and a perfect circular halo ring at its head glowing with soft warm white light edged in cyan, the fictional word LUMIS etched subtly on its side in clean minimal lettering. An elegant adult 3D-rendered hand with natural skin texture and short clean nails reaches in from the lower right corner, fingertips almost touching the halo ring, drawn toward the light. Foreground: scattered water droplets on the black glass catching prism refractions, each droplet splitting the halo glow into tiny rainbow caustics, plus a soft out-of-focus droplet bokeh layer near the lens. Midground: the floating device with a faint reflection mirrored in the glass below it and a gentle shadow pool. Background: pure dark gradient with a very subtle radial glow behind the device, a few drifting micro light particles, and the faintest silhouette of curved acrylic display props. Composition centers the device slightly above middle with the hand creating a diagonal entry, camera straight-on at macro product distance with an 85mm lens and shallow depth of field keeping the halo ring and fingertips tack sharp. Lighting is controlled studio darkness: the halo ring is the key light, spilling warm glow onto the hand and device body, a cool cyan rim traces the device edge from behind left, and a faint amber accent kisses the silver band, caustics dancing through the droplets. Materials are premium and tactile: frosted polymer with micro texture, brushed metal grain, wet glass, refracted water. Style anchors: Unreal Engine 5 product cinematic, octane render, high-end Korean beauty-tech advertising, minimal and expensive. [halo glow: warm white or soft rose] [accent rim: cyan or violet] ultra detailed, 8k, sharp focus, clean composition, deep blacks.