5V-12V AT89C2051 Multi Function Six Digital LED DIY Electronic Clock KitDescription: Circuit board is made of FR - 4 glass fiber, tough and durable plate.Reasonable circuit layout design.Use your creativity, diy your LED clock!Voltage: 5V-12VPCB Size(Length x Height): 10cm x 5.2cm / 3.9" x 2"Function: clock /alarm /countdown /stopwatch / counter Package included: 1 x LED Electronic Clock DIY Kit
,,