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Each light has an indicator which can be displayed. Indicators appear as 3D icons that indicate the defined light color and brightness. The visibility of indicators can be set in the Light Properties window.In the example below, Light 1 is a Directional, Light 2 is a Spot, Light 3 is Headlight, and Light 4 is Point.
When a light is on, the indicator will be dark. When the light is off, the indicator will be light.Light indicators can be selected like any other 3D object. Repositioning and rotating a light indicator will reset the light properties. Light properties can be viewed and edited by selecting the light indicator and opening the Properties window.