Bloom will ( obviously) set light around objects, casting a shadow on objects and players,
Spotlights will shine light on objects in an area it pointed at
Obviously you can color the Spotlights and the light will change colors with it
The sun/moon will also do some work but you can turn that of with signs
Objects and cosmetics like the Tron disc, 2.0 sword/gun will have bloom (you can also turn all that of with signs)
You can turn the spotlights off with wiring