This emergency kit allows the Phoebe LED Galanos integrated LED ceiling panel (Part Number 5259) to operate without mains power for up to 3 hours.Contains a built-in 4.0Ah lithium battery, with self-test function and charging indicator to help ensure the emergency kit is ready for use at all times.Built-in 4.0Ah lithium battery with 3 hour emergency duration.Self-test function and charging indicator.Constant wattage emergency driver, switches between charge and discharging with power cut and restoration. Suitable for indoor lighting use.