LEGO Mindstorms Light Sensor(9844) Includes 1 light sensor Does not include connector cable This is the individual component, and does not include the NXT Intelligent Brick, software or any accessories LEGO Mindstorms is age graded 10+ and is P/C MAC compatible Requires the complete LEGO Mindstorms Nxt set (#8527) for use Utilizes the LEGO Technic building system for easy and more stable building with improved functionality and movement capabilities