AlumiGogo DIY 4 Digit LED Electronic Clock Kit Large Screen Red Blue LED DIY 4 Digit LED Electronic Clock Kit Large Screen Red Blue Green LED Feature: Name: 4 digit 1 inch LED digital clock kit PCB Dimension: 98 x 35 x 1.6 mm (L x W x H) Case dimension: 105 x 46 x 29 mm (L x H x D) Digit dimension: 1 inch Working voltage: DC 5V Case material: crystal case Circuit: welding assembly Color: Red LED / Red LED with case / Blue LED / Blue LED with case / Green LED / Green LED with case SCM process : You have written a program can be used directly . Can charging with your cell phone charger. Function: Work precise, power memory, alarm function, the whole point timekeeping, you can set the whole point of time during the day and at night is not reported , the port is reserved for download (package is not included the program download pin: the pin-connector block). Manual: please click here to open Package included: 1 x Red LED kit / Red LED with case kit / Blue LED kit / Blue LED with case / Green LED / Green LED with casekit (It depends on your choose)