It flashes two LEDs (light emitting diodes) one red and the other green alternately, a it like the light on a police car. A great way to learn how a 555 Timer IC works. •PCB & all parts supplied •Requires 9V battery
| category_l3 | Educational |
| category_map_id | 1267 |
| price_exc | 11.25 |
| in_stock | 1 |
| lead_note | Available |
| source_updated_at_snapshot | 2026-10-26T00:00:39.155570 |
