A vehicle lighting assembly includes a solid state light emitter mounted on a first side of a substrate. A second side of the substrate is connected or adjacent to a heatsink. The heatsink may have a lower thermal conductivity than the second side of the substrate. A blower fluidly engages with the heatsink to flow fluid, e.g., air, through passages in the heatsink. The heatsink can include at least one aperture such that the moving fluid from the blower contacts at least a portion of the second side of the substrate.