Lights are automatically placed when you build your Foundation with the "Auto Light" option enabled. You can also manually place them inside or outside. Their optical appearance depends on where they are placed. When inside they appear as ceiling lamps, outside they appear as lamp-posts. Only indoor lamps require Electricity to operate, but do not need a direct feed from an Electrical Cable as they are fed by small, local cables which are automatically placed for you at the ends of the nearby electrical cables.
Red and Green light
Island Bound DLC adds two more types of light that look exactly the same as normal light, except the color of light that's produced which is red and green.
These green and red lights can be installed only outdoor and are perfect for helipad illumination.
- The objects image in game files contains sprites of light bulbs for walls and ceiling, though they were never actually used in the game.
Comparison of light provided by different types of lamps.
(Click on it to see the full version)
Green and red light, added in Island Bound DLC