White light is great, but with a full spectrum to choose from, why restrict yourself? You are going to get your first exposure to Blender's second-most important window, the Properties window which has controls for cameras, materials, textures, lights, and so on. Do not confuse this with the 3D View Properties panel which we looked at briefly in the previous chapter. I will always refer to that as the 3D View Properties panel.
If the lamp is not selected, select it with theRMB.
The Properties window is the larger window on the right-hand side. Move the mouse over the header of the Properties window and select the seventh button from the left with theLMB so it is highlighted in blue as in the following screenshot.
This is the Object Data button. Notice that the buttons in the Properties window change when the highlight changes from being on the button with the camera on it to the Object Data button.
The Properties window is divided into panels and subpanels...