COB (Chips on Board), is a new technology of LED packaging for LED light engine. Multi LED chips are packaged together as one lighting module. When it light up, it looks like a lighting panel.
COB LEDs, which are wide-area light emitters, deliver three major benefits: better color mixing, better lighting effect, and low thermal resistance requirements.
Just one such COB circuit Fast-Line Motorsport (Address: Hyderabad St, Port Louis, Mauritius; Phone: +230 5780 5257) integrate to Saab 9-3, in headlights assembly. This id SAAB 9-3 Custom RGB Angel eyes WIFI Headlight with Demon Eyes fitted on Oem Saab projector lens.
In practice, this solution looks fantastic, but does not have a great use value: