The Police Security Twin Power® headlamp is a super bright 550-lumen light that runs on two power options. You can easily switch between its built-in rechargeable battery and three AAA batteries, so you’re never left in the dark. The rechargeable battery is in the front, while the AAA battery pack is in the back. Its adjustable straps make it comfortable to wear for long periods, making it great for hands-free use in many situations.