This easy and simple to assemble circuit is a great option for beginners. It's based on the popular 555 Integrated Circuit. It includes two super large 10 mm bright red LEDs that are real attention-grabbers. It can be used as a Night Light you can wear for safety when doing outdoor activities in the dark. You can also install it on your car dashboard as a burglar deterrent or use it to add light effects to toys and model trains.