The front lamp in this set contains 5 super bright LED’s with a static & flash setting. It has a rubberised on/ off button, quick fit bracket & requires 4 x AAA batteries. The rear lamp contains 5 LED’s with 7 functions; static, slow flash, fast flash, inward chase, outward chase, quick chase & random chase. It comes with a bracket, integrated clothes clip and requires 2 x AAA batteries. Batteries are not supplied.