The DORCY® Pro Series 335 Lumen LED Headlamp runs on 3 AAA batteries. The LED Headlamp is designed for comfort and convenience with its adjustable elastic strap, providing hands-free illumination. This multifunctional headlamp boasts super bright LEDs, offering an impressive 335 lumens on high mode and 180 Lumens on low mode. Additionally, it features a color-changing LED in red and green. With its compact and weather-resistant design, this headlamp is ready for any situation. The top-mounted push-button switch ensures easy operation, and the headlamp provides a runtime of five hours and 30 minutes. Complete with 3 AAA cell batteries, the headlamp is your perfect companion for various activities, from outdoor adventures to everyday tasks. Battery Type: Alkaline; Flashlights Type: Headlamp; Power Source(s): 3 AAA Batteries (Included); Voltage: 4.5 V.