Features: 1) High intensity 2) Extremely long working life 3) Anti-corrosion 4) Anti-moisture 5) Reliable 6) Used as safety equipment for positional lighting in emergencies 7) Also suitable for industrial and technical use on marine vessels and in airports 8) Power source: six spare 1# dry batteries of 1.5V 9) Bulb: 7.2V 0.5A 10) Duration: at least 3h