Military lighting is used by governments and militaries globally to provide temporary and permanent light in situations where the durability and performance of the lights is mission-critical. The advent of LED lighting has changed these products in recent years, but fluorescent and incandescent lighting is still used in 1000s of military applications. In general, modern military lighting demands extreme durability, eco-friendly "green" operation with low poser consumption and low heat output and operational safety. Abilities such as EMI Protection to prevent electromagnetic inteference emitting from the lighting which could affect sensitive electronic data systems or medical systems and the ability to provide Blue or Red Blackout style light to reduce visible profiles are common. Furthermore, low-power AC and DC lighting capable of running from solar power generators and other field power systems are commonly available.
Two systems for power distribution and illumination are commonly used in NATO: