To Create Lights
1. On the View tab, click Scenes and click Edit Scene on the gallery. The Scene Editor dialog box opens.
2. Click the Lights tab.
3. Click to create a new lightbulb, to create a new spotlight, or to create a new distant light.
See Modifying Lights to specify additional definitions for the lights that you create.
Click to the left of each light to switch the light on or off. If is switched off, the light is not displayed or used during shading or rendering.