For years commercial divers have relied on hands-free lighting systems, however those systems were expensive, putting them beyond the financial reach of most recreational divers. The Vor Tec headlamp provides a bright, even, wide beam pattern which will illuminate a large working area within the user's field of vision. You'll find hundreds of applications for this technical but affordable light. SPECIFICATIONS: Power: 4 Watts Batteries: 4 AA . . . Color: BLACK.