Photoshop can simulate back, front and mood lighting from multiple light sources. You can focus a single light on your subject or light a stage with a panel of mixed lights and gels. You can add multiple spotlights to your Photoshop image in minutes.

1
Set up your Photoshop image much as you would a stage or photography studio. Use as many layers as you need to arrange objects into foreground, background and midground.

2
Open the Layers palette and select the layer you want to be your lighting focus. Choose "Lighting Effects" from the Renders submenu in the Photoshop Filters menu. You will see a preview window and a wide range of lighting adjustments.

3
Drag the light handles to change the default light source and direction. Set the lighting style as "Spotlight" if spotlight is no longer the default. Adjust the intensity and downward. The more lights you add, the more you want to reduce each light's intensity to avoid blowing out the colors in the selection.

4
Drag the light icon into the Preview window to add a new light. Move the new light into position and drag the handles to change the light source, direction and spread. You can also click on the center of any current spotlight and drag with the "Option/Alt" key down to create a copy with the current settings. You can add up to 16 lights to the panel.

5
Add a color gel by clicking on the color swatch in the Light Type section. You can choose a gel from Photoshop's default color palette or load a custom color library.

6
Continue to add spotlight effects to different layers and selections. While you are limited to 16 lights in each filter application, there is no limit to the number of objects you can light.