The ROBO LT Beginner Lab is the perfect way to introduce grade school students (age 8 and above) to the exciting world of robotics and programming. Set contains 180 components -- including sensors (phototransistor, push-button switch), and actuators (XS motor, indicator lights) --for building 8 easy to understand models, such as a lighthouse with a blinking light, a merry-go-round, and an automatic sliding door. Also included is the all-new ROBO LT Controller which has 3 inputs for sensors, two outputs for motors or indicator lights, and a USB interface. In addition, you get the new ROBO Pro Light software, which allows students to quickly and easily begin programming their robotic creations. Perfect for the engineers of tomorrow. Requires Accu Set(#57487) or Energy Set (#91087) - both sold separately.Product Measures: VariousRecommended Ages: 8 years & Up