We use Lighttools 7.1 to optimize the LED array. Taking into account the actual working distance of the LED device, LED plant lights working distance is set about 0.8–1 m or so. So we will set the optimized distance as 1m. Because the cover in front of the supplementary lighting system is flat glass, so we can just optimize the LED system by optimizing the coordinates of the LEDs. Calculated by the software, the radiation power received by the receiver at one meter distance is 39.923 W, so the optical efficiency of the LED supplementary lighting system is [10]: