The G2 cap light is a light weight, compact, supplemental cockpit light engineered to withstand extreme conditions and use. The G2 is powered by only 2 lithium coin batteries, for approximately 75+ hours of ultra bright LED light. Also featured with the G2 is a strobe mode and 2-way switch for emergencies. The new G2 weighs only 1.0 oz including batteries and is water resistant. It attaches to any style brimmed cap for the most practical, cost effective, hands-free light source. The light is available in three LED colors – white, green and red. Green and red lights are perfect for night flying, and the white is a very good all purpose light.