ITEM NAME:5050 RGB LED Light Module Extender Board for 51/AVR/AVR/ARM/Arduino Product Description Description: Features: Full color RGB LED. Supports low level control. Great light effect with PWM program. Suitable for 51/AVR/AVR/ARM/Arduino. Size: approx. 25 X 21 X 6 mm/0.98 X 0.83 X 0.24 in Included: 1 X LED Extender Module.Full color RGB LED. Included:1 X LED Extender Module. Great light effect with PWM program. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.