Have a look at a free pack from Michal Orzelek. 

Interactive Lights System (ILS) lets artists control when or how lights are switched on or switched off within a certain area. You can add interaction by dragging and dropping Blueprints into levels. The system also features ready-to-use examples for you to prototype light behavior.

The pack includes 29 blueprints in total (4 main + various examples).

Key features:

• Point / Spot / Rect light support
• Custom Static Mesh support for Light or Light Switch Blueprints
• Various Light behavior: Default, Flicker, Pulsing or Heating up / Cooling down
• Material Parameters control
• Audio feedback
• Automatic Sound Volume Modulation
• Customizable Text Labels
• Easy to expend with custom functionality

You can learn more and get the pack here.