brickcon-nz 2019

Yes. There are numerous unofficial lighting kits for the Ecto-1 set and many other sets. There are also the Fx Bricks devices, which can help install lights and sounds into LEGO models more easily and bring Power Functions parts to their full potential. Until those were made, some of these features were only possible with Mindstorms (or electric parts from non LEGO devices). Adult Fans of LEGO (AFOLs) are a very large community spanning several countries, conventions and websites.