These safety-rated headlamps offer standard operation for applications that don't require clip-on mounting or rechargeable batteries. They strap onto a worker's head or helmet, gripping all the way around for a secure hold. These headlamps are powered by disposable batteries. The Intrinsically Safe Vizz II is feature-loaded with two distinct beam profiles easily accessed via a simple press or hold of the button. One Maxbright LED creates a powerful 200 lumen spot beam for long-throw illumination, while 4 Ultrabright LEDs deliver a dimmable flood beam. As with all of Princeton Tec Professional series headlamps, the rugged Vizz II is waterproof.