This set is suitable for friends of light. It contains two light sensors, a sound sensor and an RGB LED light.
You can build these robots with the extension Sound Lamp Light Racker Longtail
Contents: - 2x light sensor - 1x noise sensor - 1x RGB LED light - 2x rectangle plate 3x11hole - 1x wrench - 20x screw M4*9 - 2x 135° angle plate 7*2/3* 2hole - 2x lock screw M4*5 - 2x screw M4*15 - 2x L-Bracket 3*6 hole - 1x RJ11 cable 180mm