Bright LED (light emitting diode) with glare-free, wide beam illumination. Wide mouth, articulating clamp attaches securely on uneven surfaces. Adjusts instantly to aim light, doesn't bounce or move. Made from impact resistant ABS (Acrylonitrile Butadiene Styrene) plastic. Use on grills, work benches, in the home or office, for camping, and more. Energy efficient LEDs extend battery life and never need replaced. Uses 3 AA batteries (not included).