If the rendered effect image is not bright enough, you can manually add supplemental lighting. Alternatively, supplemental lighting can be added with one click in the rendering interface (under the Lighting template section). The steps are shown in the screenshot as follows:

After completing the effect image, it is recommended not to add lights beforehand but to render directly, then adjust the lighting according to the result of the rendered image. In effect image design, due to the different sizes and suitability of each room, as well as the specific effect that needs to be displayed, the required lighting parameters will vary. Automatic supplemental lighting is only intended for basic supplemental lighting effects.