4-Way switch, This lightweight, compact cap light is engineered to withstand extreme conditions and rugged use. This cap light is powered by (2) lithium coin cell batteries for hours of ultra bright white light from 5 LED bulbs with 100,000 + hours of burn time. Weighs only 1.24 ounces with batteries, is waterproof and attaches to caps for the most powerful hands-free light source available.