Device dimensions 3-5in dia, ½ in or less thick.
Body composed of acrylic or glass tile.
Light source single <1w 400nm LED or <5mw defocused uv laser for spot
Solar cells est power = .66w/sqr in @ 2.5in usable area = 13w
The battery will be a 3.7v lipo variant common in cell phones
Visible light emitted will be from either fluorescence or photoluminescence.A combination of the two may offer the potential animation, or increased attention warning options.