For the game I am working on I need a lighthouse to cast a beam of light. But, because spotlights have a low max attenuation, I cant get a beam of light to come out of the lighthouse.
For something like that you would want to use a static mesh that acts as your light beam and you can use an emissive material with some setups similar to the God Rays materials that are setup in a few of the sample projects epic has released to get a nice look for the light material.
Since the light wouldn’t have to actually interact with most or any of the environment this can be an easy way to achieve this effect. If you the light to hit the environment you could place one near the end of the the static mesh in your Blueprint so that it’s not maxing out the attenuation distance.
I hope that helps get your started.