New palette, Edit light palette

Point light
Point light is diffused evenly from a single light source in all directions.

The intensity of the light drops the further away one is from the point. You can adjust the intensity of the light by increasing the black component.
Spotlight
The spotlight is a directional light source. The light radiates in one direction from the source to the target.

A pool of light forms around the target. The intensity of the light decreases the further the target is from the source.

The intensity of the light drops the further away one is from the point. You can adjust the intensity of the light by increasing the black component.

You can set an angle of between 1 and 179 degrees.
Conical light or
The conical light illuminates a clearly delimited area around the target. A pool of light forms around the target. The intensity of the light pool cast is uniform.

The intensity of the light drops the further away one is from the point. You can adjust the intensity of the light by increasing the black component.

You can set an angle of between 1 and 179 degrees.
Area
Using the Area type of light, you can create area light sources diffusing light evenly in one direction, such as rows of lights in ceilings of large rooms.

As with conical light and spotlight, you define the direction by placing an eye point and a target point. The light quantity depends on the size of the area and the Intensity set.

A vertical line in the center of the area indicates the direction of light and its intensity. Using Angle, you can rotate the area about the vertical line. You can set an angle of rotation between -90 and 90 degrees.

You can display the area with lights in rendered images.

Important!
Once you have defined a light source, you cannot change the Type of light later!

Only when editing a single light source you have already defined (except point light)

Click the Color button to define the color and color temperature of the light source in the Color palette.

Controls the diameter of the light and thus - together with Intensity - its illuminance.

Indicates the percentage of light (Light angle) illuminated with full Intensity as a central light spot. In the remaining area, the light intensity decreases towards the edge. The higher the value, the larger the bright center.

The axis of rotation is the perpendicular in the drop-in point of the light source.
Note: You can only rotate spotlight and conical light whose light target is not directly below.