Model: EMLEDKITSPW Voltage: 230V Mains frequency: 50-60Hz Power Consumption: 4VA Emergency Duration: 3 Hours Batteries: 2 Cell 2.4V 4Ah niMH Working Temp.: 5°C - 45°C Weight: 0.58KG Charging Time: 24 Hours Protection Class: 1 IP Rating: IP20 Guarantee 5 Year Material: Plastic Dimensions: L: 360 x W: 37 x D: 25mm Complies to: IEC 61347-2-7 suitable for installation to EN50172 and BS7671 Extra Info: The battery has a designed service life of 4 years and must be replaced in a timely manner to ensure the integrity of the emergency lighting system is maintained. In any case the battery should be replaced when it no longer provides the rated duration (3 hours). Manufactured in the UK. Emergency constant power output 2.5W. Operable on LED arrays with a voltage requirement between 6 and 55V DC. Note: Does not include LED Driver