Strobing red white and blue LEDs on this 3” star produce a blinding bright flashing display. Uses one IC circuit with 20 brilliant LEDs and an adjustable control for flashing speed. The star can be seen from great distances and is very eye catching. Operates from one 9V battery (not included). Size of PC board is 3.52” sq. Complete with all parts, PC board and instructions. Skill Level 2.