Rectangle & slim green led backlit Working voltage DC3V or 12V or 24V Light source: SMD3528 or SMD3014 or SMD0603 LEDs Red OEM Service and customized design is no problem and very easy job for us, only if you can provide CAD file or your idea in details, then that is OK.LED Backlit Structure 1, LGP, led light guide panel2, Diffusion mesh dot3, Diffusion film or diffusion barrier4, PCB5, LEDs, ...