This kit produces blinding red bursts of light from 3 special "Piranha" LEDs. Uses the popular 555 IC and features 2 controls. One control for the speed of flashing and one for the intensity of the LEDs. Operates from one 9V battery (not included). Size of PC board 2" square. Complete with all parts, PC board and instructions. Skill Level 2. Manufactured by Chaney Electronics.