The specifications of LED emergency power are diverse and play a vital role in determining its performance and applicability. One of the key specifications is the capacity, which is usually measured in ampere - hours (Ah). A higher - capacity LED emergency power system can provide power for a longer duration during an outage. For instance, a 10 - Ah LED emergency power unit can supply electricity to a set of emergency lights for a more extended period compared to a 5 - Ah unit, depending on the power consumption of the lights.

　　Voltage is another crucial specification. LED emergency power systems typically operate at standard voltages such as 12V, 24V, or 48V. The voltage needs to be compatible with the LED emergency lights and other connected devices. If the voltage of the emergency power system does not match the requirements of the lights, it can lead to improper operation, reduced brightness, or even damage to the lights.

　　The power output of LED emergency power is also significant. It determines the number and power - rating of the LED lights that can be powered. For example, a high - power LED emergency power system with an output of 100W can support multiple high - wattage LED emergency lights, while a lower - power system with an output of 20W may only be suitable for a few low - power lights.

　　In addition, the charging time and efficiency are important specifications. A fast - charging LED emergency power system can quickly recharge after a power outage, ensuring that it is ready for the next emergency. High - efficiency charging also reduces energy waste and extends the lifespan of the power system's battery.